CN104349368A - Method and device for optimizing CSFB (circuit switched fallback) delay based on position information and base station - Google Patents
Method and device for optimizing CSFB (circuit switched fallback) delay based on position information and base station Download PDFInfo
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- CN104349368A CN104349368A CN201410640839.1A CN201410640839A CN104349368A CN 104349368 A CN104349368 A CN 104349368A CN 201410640839 A CN201410640839 A CN 201410640839A CN 104349368 A CN104349368 A CN 104349368A
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Abstract
The invention discloses a method and a device for optimizing CSFB (circuit switched fallback) delay based on position information, and a base station. The method comprises the following steps of enabling user equipment to receive the information of the base station carrying geological information; according to the information of the base station, executing the updating of a tracking area of the user equipment. The method has the advantages that the current movement state of the user equipment is obtained, different position updating strategies are adopted according to different movement states, the corresponding judgment is performed according to the position information and the cell information of the user equipment, and when the updating belongs to the updating range through judgment, the joint registering operation on a TAU (tracking area update) is performed in advance, so the position area is more timely updated; the delay caused by the updating and registering process of the position area in the CSFB is reduced.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of circuit domain dropping CSFB time delay optimization method of position-based information, device and base station.
Background technology
In prior art, LTE (Long Term Evolution) the voice scheme of mobile communication carrier generally adopts circuit domain dropping CSFB (Circuit Switched Fallback).Intelligent terminal receives the beep-page message that network is sent under 4G, connect with LTE network afterwards, LTE network sends redirect message to intelligent terminal, intelligent terminal is redirected to 2G or 3G network, intelligent terminal under GSM (Global System for Mobile), respond beep-page message after intelligent terminal and network set up call and be connected.In whole process, intelligent terminal is after being redirected to GSM network, if the lane place identification code LAI that before finding this GSM network and intelligent terminal, LTE network receives (Location Area Identity) is different, then can upgrade enrollment process by launch position.
CSFB terminal falls after rise in the process of establishing of communication process, and Signalling exchange is complicated, and it is bigger than normal that the network element related to causes time delay more, and calling is total connects time delay usually between 8-15s second.If carry out LAU (Location Area Update) in communication process to upgrade, then more new registration can take the time of about 3 seconds.
Carrying out LAU process in communication process is as required one of principal element that CSFB scheme time delay is increased.
Intelligent terminal can obtain LAI in TAU combined registering process, TA district (lane place of LTE packet domain) design and LA district (lane place of the current registration of intelligent terminal) are designed with defect, a TA can be caused to occur across the situation of multiple LA, can cause like this in communication process from the defect that can trigger LAU location area updating process after LTE falls back to GSM and cause time delay excessive.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of circuit domain dropping CSFB time delay optimization method of position-based information, device and base station, to solve in prior art, when falling back to GSM from LTE, the defect that the LAU location area updating process time delay of triggering is excessive.
It is as follows that the present invention solves the problems of the technologies described above adopted technical scheme:
Construct a kind of circuit domain dropping CSFB time delay optimization method of position-based information, the method comprises:
The base station information carrying geographical location information is received by subscriber equipment;
The tracing section updating operation of subscriber equipment is performed according to base station information.
Preferably, also comprised before carrying the base station information of geographical location information by subscriber equipment reception:
By the geographical position modification information of predetermined period sensing user equipment;
According to moving range and the translational speed of geographical position modification information determination subscriber equipment;
Judge whether moving range exceeds the default moving range triggering tracing section updating operation;
If so, then judge whether translational speed is greater than the default translational speed triggering tracing section updating operation;
If so, the base station information carrying geographical location information is then received.
Preferably, also comprised before carrying the base station information of geographical location information by subscriber equipment reception:
If through judging that obtaining translational speed is greater than the default translational speed triggering tracing section updating operation, then carry out following steps,
Receive maintenance information, wherein, maintenance information comprises the frequency point information of adjacent area, positional information and lane place id information;
Measure the range information between each base station and subscriber equipment in adjacent area;
A distance table corresponding with adjacent area is generated according to maintenance information and range information.
Preferably, also comprised before carrying the base station information of geographical location information by subscriber equipment reception:
According to distance table, be the first base station by the basestation marker nearest with subscriber equipment;
When the first base station is changed, and when the lane place ID belonging to the first base station also occurs to change, obtain the signal strength measurement of the second base station after changing.
Preferably, also comprised before carrying the base station information of geographical location information by subscriber equipment reception:
If the signal strength measurement of the second base station meets the S criterion of cell reselection, then received the second base station information carrying geographical location information by subscriber equipment;
The tracing section updating operation of subscriber equipment is performed according to the second base station information.
The invention allows for a kind of circuit domain dropping CSFB time delay optimization device of position-based information, this device comprises:
Base station information acquisition module, for receiving the base station information carrying geographical location information by subscriber equipment;
Tracing section updating module, for performing the tracing section updating operation of subscriber equipment according to base station information.
Preferably, also comprise geographical position modification information sensing module, mobile status determination module and mobile status judge module, wherein,
Geographical position modification information sensing module is used for the geographical position modification information by predetermined period sensing user equipment;
Mobile status determination module is used for according to the moving range of geographical position modification information determination subscriber equipment and translational speed;
Mobile status judge module is for judging whether moving range exceeds the default moving range triggering tracing section updating operation;
If so, then judge whether translational speed is greater than the default translational speed triggering tracing section updating operation;
If so, the base station information carrying geographical location information is then received.
Preferably, also comprise maintenance information receiver module, range information measurement module and distance table generation module, wherein,
Maintenance information receiver module is used for when through judging that obtaining translational speed is greater than the default translational speed triggering tracing section updating operation, and receive maintenance information, wherein, maintenance information comprises the frequency point information of adjacent area, positional information and lane place id information;
Range information measurement module is for measuring the range information in adjacent area between each base station and subscriber equipment;
Distance table generation module is used for generating a distance table corresponding with adjacent area according to maintenance information and range information.
Preferably, also comprise the first basestation marker module and signal strength measurement module, wherein,
First basestation marker module is used for according to distance table, is the first base station by the basestation marker nearest with subscriber equipment;
Signal strength measurement module is used for changing when the first base station, and when the lane place ID belonging to the first base station also occurs to change, obtains the signal strength measurement of the second base station after changing;
Base station information acquisition module also for, if the signal strength measurement of the second base station meets the S criterion of cell reselection, then received by subscriber equipment and carry the second base station information of geographical location information;
Tracing section updating module is also for performing the tracing section updating operation of subscriber equipment according to the second base station information.
The invention allows for a kind of circuit domain dropping CSFB time delay optimization base station of position-based information, this base station comprises the circuit domain dropping CSFB time delay optimization device of above-mentioned position-based information.
Implement the present invention, by obtaining the current mobile status of subscriber equipment, and take different location Update Strategies according to different mobile statuss, meanwhile, carry out corresponding decision according to the positional information of subscriber equipment and location information of cell, and when judgement belong to more new range time, combined registering operation is performed in advance to TAU, thus achieve location area updating more in time, The present invention reduces when by circuit domain dropping CSFB, due to the time delay that location area updating registration process causes.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the flow chart of the circuit domain dropping CSFB time delay optimization method of the position-based information that the present invention proposes;
Fig. 2 is the flow chart of the circuit domain dropping CSFB time delay optimization method of the position-based information that the present invention second preferred embodiment proposes;
Fig. 3 is the flow chart of the circuit domain dropping CSFB time delay optimization method of the position-based information that the present invention the 3rd preferred embodiment proposes;
Fig. 4 is the flow chart of the circuit domain dropping CSFB time delay optimization method of the position-based information that the present invention the 4th preferred embodiment proposes;
Fig. 5 is the flow chart of the circuit domain dropping CSFB time delay optimization method of the position-based information that the present invention the 5th preferred embodiment proposes;
Fig. 6 is the structured flowchart of the circuit domain dropping CSFB time delay optimization device of the position-based information that the present invention proposes.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearly, understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment one
Fig. 1 is the flow chart of the circuit domain dropping CSFB time delay optimization method of the position-based information that the present invention proposes.The method comprises:
S10, receives the base station information carrying geographical location information by subscriber equipment.
S20, performs the tracing section updating operation of subscriber equipment according to base station information.
Classify according to the mobile status of subscriber equipment, this mobile status can be divided into following three kinds:
A, relative static conditions: if subscriber equipment is no more than in the moving range of specific time with the R the preset circle that is radius, then think that subscriber equipment is in relative static conditions.
Be appreciated that this scope can also be that other is irregularly shaped.
B, normal mobile state: if subscriber equipment is not in relative static conditions, and speed v is no more than preset value, then think that subscriber equipment is in normal mobile state.
C, high-speed moving state: if subscriber equipment is not in relative static conditions, and speed exceedes above-mentioned preset value, then think the normal high-speed moving state of subscriber equipment process.
Three kinds of above-mentioned states adopt different tracing section updating TAU (Tracking Area Update) combined registering strategies.Wherein, tracking area is in EPS, apply corresponding band of position concept, this band of position is called tracking area, EPS be then one based on existing radio paging system and Internet computer network communication technology, and organically by global bidirection paging over network system that global network information communication treatment technology is combined with domestic wireless paging service handling process.Particularly:
A, relative static conditions processing policy:
The length in the time interval can revise setting according to the duration of periodicity LAU.
The term of validity of the LAU of network issues by carrying T3212 (periodical position renewing timer) under system information type3.When GPS device detects that mobile phone does not have change in location (position is moved and is less than threshold value) time, periodically before LAU time-out, initiatively complete TAU combined registering carries out location updating.That is:
If T3412<T3212, wherein, T3412 time-out triggers TAU combined registering, otherwise T3212 time-out triggers TAU combined registering.
B, normal mobile state processing policy:
Self-position is known, by calculating moving range r and speed v by GPS
ENodeB issuing message carries all 2G adjacent areas frequency, geographical position, lane place ID.
The carrying out of all 2G adjacent areas is measured.
Subscriber equipment according to these maintenances of information one to all distance tables facing zone position information, be nearest_bs_id by nearest basestation marker, when nearest_bs_id change and the lane place ID of base station also changes time, the signal strength measurement of this base station cell is obtained from bottom, if the signal strength signal intensity of nearest_bs_id meets the S criterion that community is selected, then initiate a TAU associated update in advance.Wherein, S criterion is selected as community, and judge the criterion that community could be resident specifically, this criterion belongs to prior art, does not repeat them here.
C, high-speed moving state processing policy:
Do not trigger new TAU combine processes registration, carry out according to the strategy of TS24.301 (the LTE core network specification based on GPRS) tracing section updating.
The beneficial effect of the present embodiment is, by obtaining the current mobile status of subscriber equipment, and take different location Update Strategies according to different mobile statuss, simultaneously, corresponding decision is carried out according to the positional information of subscriber equipment and location information of cell, and when judgement belong to more new range time, combined registering operation is performed in advance to TAU, thus achieve location area updating more in time, The present invention reduces when by circuit domain dropping CSFB, due to the time delay that location area updating registration process causes.
Embodiment two
Fig. 2 is the flow chart of the circuit domain dropping CSFB time delay optimization method of the position-based information that the present invention second preferred embodiment proposes.Based on above-described embodiment, also comprised before carrying the base station information of geographical location information by subscriber equipment reception:
S01, by the geographical position modification information of predetermined period sensing user equipment.Be appreciated that and GPS can be adopted to obtain geographical position modification information, or adopt cellular data architecture to obtain geographical position modification information.
S02, according to moving range and the translational speed of geographical position modification information determination subscriber equipment.Within the unit interval, after getting geographical position modification information by above-mentioned steps, can draw within this unit interval, the moving range of subscriber equipment and translational speed.
S03, judges whether moving range exceeds the default moving range triggering tracing section updating operation.
S04, if so, then judges whether translational speed is greater than the default translational speed triggering tracing section updating operation.
S05, if so, then receives the base station information carrying geographical location information.
The beneficial effect of the present embodiment is, by the geographical position modification information by predetermined period sensing user equipment, and the judgement operation of repeatedly moving range and translational speed, thus achieve the accurate judgement of the mobile status mobile status of subscriber equipment being in above-mentioned b situation.
Embodiment three
Fig. 3 is the flow chart of the circuit domain dropping CSFB time delay optimization method of the position-based information that the present invention the 3rd preferred embodiment proposes.Based on above-described embodiment, also comprised before carrying the base station information of geographical location information by subscriber equipment reception:
If through judging that obtaining translational speed is greater than the default translational speed triggering tracing section updating operation, then carry out following steps:
S06, receives maintenance information, and wherein, maintenance information comprises the frequency point information of adjacent area, positional information and lane place id information.
S07, measures the range information between each base station and subscriber equipment in adjacent area.
S08, generates a distance table corresponding with adjacent area according to maintenance information and range information.
Be appreciated that this distance table comprises each base station IDs in adjacent area, and the frequency point information relevant to each base station IDs, positional information and lane place id information.
The beneficial effect of the present embodiment is, by the maintenance information that receives base station and the range information measured in adjacent area between each base station and subscriber equipment, and generate a distance table corresponding with adjacent area according to maintenance information and range information, provide data basis for marking nearest base station.
Embodiment four
Fig. 4 is the flow chart of the circuit domain dropping CSFB time delay optimization method of the position-based information that the present invention the 4th preferred embodiment proposes.Based on above-described embodiment, also comprised before carrying the base station information of geographical location information by subscriber equipment reception:
The basestation marker nearest with subscriber equipment, according to distance table, is the first base station by S09.
S10, when the first base station is changed, and when the lane place ID belonging to the first base station also occurs to change, obtains the signal strength measurement of the second base station after changing.The measurement of signal strength signal intensity belongs to prior art means, does not repeat them here.
The beneficial effect of the present embodiment is, by being the first base station by the basestation marker nearest with subscriber equipment, and when the first base station is changed, and the lane place ID belonging to the first base station also occur change time, obtain the signal strength measurement of the second base station after changing, thus for determining that the S criterion whether nearest base station meets cell reselection provides related data.
Embodiment five
Fig. 5 is the flow chart of the circuit domain dropping CSFB time delay optimization method of the position-based information that the present invention the 5th preferred embodiment proposes.Based on above-described embodiment, also comprised before carrying the base station information of geographical location information by subscriber equipment reception:
S11, if the signal strength measurement of the second base station meets the S criterion of cell reselection, then receives the second base station information carrying geographical location information by subscriber equipment.
Further, when subscriber equipment is in the mobile status of above-mentioned b situation, and when subscriber equipment is all in the mobile status of above-mentioned b situation within each unit interval, then within each unit interval, all tracing section updating operation is carried out.
Further, when subscriber equipment is in the mobile status of above-mentioned b situation, and subscriber equipment when being all in the mobile status of above-mentioned b situation within each unit interval, then certain time delay is set before being about to make tracing section updating operation, therefore, when subscriber equipment is in the mobile status of above-mentioned b situation through multiple unit interval, be in front multiple unit interval, do not carry out tracing section updating operation, and carry out above-mentioned tracing section updating operation in the in the end unit interval
S12, performs the tracing section updating operation of subscriber equipment according to the second base station information.
The beneficial effect of the present embodiment is, by judging that the signal strength measurement of the second base station meets the S criterion of cell reselection, and received the second base station information carrying geographical location information by subscriber equipment, then in the tracing section updating operation performing subscriber equipment according to the second base station information.Achieve when subscriber equipment continues to keep mobile status, in time and carry out tracing section updating operation efficiently.
One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is that the hardware that can control to be correlated with by program completes, described program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD etc.
Embodiment six
Fig. 6 is the structured flowchart of the circuit domain dropping CSFB time delay optimization device of the position-based information that the present invention proposes.This device comprises:
Base station information acquisition module 10 is in being received the base station information carrying geographical location information by subscriber equipment;
Tracing section updating module 20 is in the tracing section updating operation performing subscriber equipment according to base station information.
Preferably, also comprise geographical position modification information sensing module 30, mobile status determination module 40 and mobile status judge module 50, wherein,
Geographical position modification information sensing module 30 is for the geographical position modification information by predetermined period sensing user equipment;
Mobile status determination module 40 is for according to the moving range of geographical position modification information determination subscriber equipment and translational speed;
Mobile status judge module 50 is for judging whether moving range exceeds the default moving range triggering tracing section updating operation;
If so, then judge whether translational speed is greater than the default translational speed triggering tracing section updating operation;
If so, the base station information carrying geographical location information is then received.
Preferably, also comprise maintenance information receiver module 60, range information measurement module 70 and distance table generation module 80, wherein,
Maintenance information receiver module 60 is for when through judging that obtaining translational speed is greater than the default translational speed triggering tracing section updating operation, and receive maintenance information, wherein, maintenance information comprises the frequency point information of adjacent area, positional information and lane place id information;
Range information measurement module 70 is for measuring the range information in adjacent area between each base station and subscriber equipment;
Distance table generation module 80 is for generating a distance table corresponding with adjacent area according to maintenance information and range information.
Preferably, also comprise the first basestation marker module 90 and signal strength measurement module 100, wherein,
The basestation marker nearest with subscriber equipment, for according to distance table, is the first base station by the first basestation marker module 90;
Signal strength measurement module 100 for changing when the first base station, and when the lane place ID belonging to the first base station also occurs to change, obtains the signal strength measurement of the second base station after changing;
Base station information acquisition module 10 also for, if the signal strength measurement of the second base station meets the S criterion of cell reselection, then received by subscriber equipment and carry the second base station information of geographical location information;
Tracing section updating module 20 is also for performing the tracing section updating operation of subscriber equipment according to the second base station information.
The invention allows for a kind of circuit domain dropping CSFB time delay optimization base station of position-based information, this base station comprises the circuit domain dropping CSFB time delay optimization device of above-mentioned position-based information.
It should be noted that, the technical characteristic in said method embodiment is all corresponding applicable at this device, no longer repeats here.
This circuit domain dropping CSFB time delay optimization device may be used for mobile phone or corresponding base station, or there are other communication terminals of circuit domain dropping CSFB time delay optimization function, such as, in smart mobile phone etc., can be run on the software unit in these communication terminals, also can be integrated in these communication terminals as independently suspension member or run in the application system of these mobile terminals.
Above with reference to the accompanying drawings of the preferred embodiments of the present invention, not thereby limit to interest field of the present invention.Those skilled in the art do not depart from the scope and spirit of the present invention, and multiple flexible program can be had to realize the present invention, and the feature such as an embodiment can be used for another embodiment and obtains another embodiment.All use do within technical conceive of the present invention any amendment, equivalently replace and improve, all should within interest field of the present invention.
Claims (10)
1. the circuit domain dropping CSFB time delay optimization method of position-based information, it is characterized in that, described method comprises:
The base station information carrying geographical location information is received by subscriber equipment;
The tracing section updating operation of described subscriber equipment is performed according to described base station information.
2. the circuit domain dropping CSFB time delay optimization method of position-based information according to claim 1, is characterized in that, also comprises before carrying the base station information of geographical location information by subscriber equipment reception:
The geographical position modification information of described subscriber equipment is sensed by predetermined period;
Moving range and the translational speed of described subscriber equipment is determined according to described geographical position modification information;
Judge whether described moving range exceeds the default moving range triggering the operation of described tracing section updating;
If so, then judge whether described translational speed is greater than the default translational speed triggering the operation of described tracing section updating;
If so, the base station information carrying geographical location information is then received.
3. the circuit domain dropping CSFB time delay optimization method of position-based information according to claim 2, is characterized in that, also comprises before carrying the base station information of geographical location information by subscriber equipment reception:
If through judging that obtaining described translational speed is greater than the default translational speed triggering the operation of described tracing section updating, then carry out following steps,
Receive maintenance information, wherein, described maintenance information comprises the frequency point information of adjacent area, positional information and lane place id information;
Measure the range information between each base station and described subscriber equipment in described adjacent area;
A distance table corresponding with described adjacent area is generated according to described maintenance information and described range information.
4. the circuit domain dropping CSFB time delay optimization method of position-based information according to claim 3, is characterized in that, also comprises before carrying the base station information of geographical location information by subscriber equipment reception:
According to described distance table, be the first base station by the basestation marker nearest with described subscriber equipment;
When described first base station is changed, and when the lane place ID belonging to described first base station also occurs to change, obtain the signal strength measurement of the second base station after changing.
5. the circuit domain dropping CSFB time delay optimization method of position-based information according to claim 4, is characterized in that, also comprises before carrying the base station information of geographical location information by subscriber equipment reception:
If the signal strength measurement of described second base station meets the S criterion of cell reselection, then received the second base station information carrying geographical location information by subscriber equipment;
The tracing section updating operation of described subscriber equipment is performed according to described second base station information.
6. the circuit domain dropping CSFB time delay optimization device of position-based information, it is characterized in that, described device comprises:
Base station information acquisition module, for receiving the base station information carrying geographical location information by subscriber equipment;
Tracing section updating module, for performing the tracing section updating operation of described subscriber equipment according to described base station information.
7. the circuit domain dropping CSFB time delay optimization device of position-based information according to claim 6, is characterized in that, also comprise geographical position modification information sensing module, mobile status determination module and mobile status judge module, wherein,
Described geographical position modification information sensing module is used for the geographical position modification information sensing described subscriber equipment by predetermined period;
Described mobile status determination module is used for moving range and the translational speed of determining described subscriber equipment according to described geographical position modification information;
Described mobile status judge module is for judging whether described moving range exceeds the default moving range triggering the operation of described tracing section updating;
If so, then judge whether described translational speed is greater than the default translational speed triggering the operation of described tracing section updating;
If so, the base station information carrying geographical location information is then received.
8. the circuit domain dropping CSFB time delay optimization device of position-based information according to claim 7, is characterized in that, also comprise maintenance information receiver module, range information measurement module and distance table generation module, wherein,
Described maintenance information receiver module is used for when through judging that obtaining described translational speed is greater than the default translational speed triggering the operation of described tracing section updating, receive maintenance information, wherein, described maintenance information comprises the frequency point information of adjacent area, positional information and lane place id information;
Described range information measurement module is for measuring the range information in described adjacent area between each base station and described subscriber equipment;
Described distance table generation module is used for generating a distance table corresponding with described adjacent area according to described maintenance information and described range information.
9. the circuit domain dropping CSFB time delay optimization device of position-based information according to claim 8, is characterized in that, also comprise the first basestation marker module and signal strength measurement module, wherein,
Described first basestation marker module is used for according to described distance table, is the first base station by the basestation marker nearest with described subscriber equipment;
Described signal strength measurement module is used for changing when described first base station, and when the lane place ID belonging to described first base station also occurs to change, obtains the signal strength measurement of the second base station after changing;
Described base station information acquisition module also for, if the signal strength measurement of described second base station meets the S criterion of cell reselection, then received by subscriber equipment and carry the second base station information of geographical location information;
Described tracing section updating module is also for performing the tracing section updating operation of described subscriber equipment according to described second base station information.
10. the circuit domain dropping CSFB time delay optimization base station of position-based information, is characterized in that, described base station comprises the circuit domain dropping CSFB time delay optimization device of the position-based information described in described claim 6-9.
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| CN110324823A (en) * | 2019-07-04 | 2019-10-11 | 中国联合网络通信集团有限公司 | A kind of CSFB method of calling, system |
| CN110324823B (en) * | 2019-07-04 | 2022-03-18 | 中国联合网络通信集团有限公司 | CSFB calling method and system |
| CN110366165A (en) * | 2019-07-17 | 2019-10-22 | 中国联合网络通信集团有限公司 | Mobile terminal combines adherence method and system again |
| CN110366165B (en) * | 2019-07-17 | 2021-12-14 | 中国联合网络通信集团有限公司 | Method and system for re-associating attachment of mobile terminal |
| CN111465094A (en) * | 2020-04-10 | 2020-07-28 | 中国联合网络通信集团有限公司 | Position updating method, system and terminal in combined attachment mode |
| CN113015189A (en) * | 2021-02-24 | 2021-06-22 | 中国联合网络通信集团有限公司 | Combined position updating method, mobile terminal and system |
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| CN104349368B (en) | 2016-11-23 |
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