CN101453728A - Method and apparatus for implementing location update in radio communication system - Google Patents
Method and apparatus for implementing location update in radio communication system Download PDFInfo
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- CN101453728A CN101453728A CNA2007101787334A CN200710178733A CN101453728A CN 101453728 A CN101453728 A CN 101453728A CN A2007101787334 A CNA2007101787334 A CN A2007101787334A CN 200710178733 A CN200710178733 A CN 200710178733A CN 101453728 A CN101453728 A CN 101453728A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
Abstract
The invention relates to a method and a device for realizing position update in a wireless communication system. The method comprises: when a terminal enters other registration areas except current registration area recorded in a registration area list, a corresponding position update trigger timer begins timing; when the position update trigger timer is time-out, the position update operation is triggered; or when a position in which the terminal is positioned exceeds the range of the current registration area and expanded areas, the position update operation is triggered. Therefore, the method and the device can effectively improve the success rate of system paging under the condition of occupying a small quantity of system resources as possible.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to the technical scheme of updating of terminal position in the wireless communication system.
Background technology
In wireless communication system, the base station is broadcast paging messages within the specific limits, the paging portable terminal.For ease of paging, usually whole mobile network is divided into several registration areas according to the geographic area, when terminal when a registration area moves to another registration area, terminal sends its reposition of registration message apprizing system, this reposition of system log (SYSLOG), this process are called the position to be upgraded.During the base station calling portable terminal, as long as to the current registration area broadcast paging messages that writes down.
Yet at two or more registration area intersections, owing to factors such as signal fluctuation, terminal move, terminal may frequently be switched between the registration area, causes the frequent executing location of terminal to upgrade operation.And the renewal of frequent position will cause occurring disturbing promoting, and the power that increases terminals consume, the problems such as occupancy of raising system link, CPU.
For addressing the above problem, the technical scheme that adopts is that corresponding survival timer is set on terminal at present, so that control corresponding location update operations, upgrade the problem that operation may cause to avoid the frequent executing location of terminal by described survival timer.Specifically be to safeguard a registration area tabulation in terminal, wherein, each of tabulation is all preserved a registration area, and the corresponding survival timer in each registration area, and based on the tabulation of corresponding registration area, the corresponding processing comprises:
When terminal enters a new registration area, judge that this registration area is whether in its tabulation: if do not exist, then it is added tabulation, start corresponding survival timer, and carry out the position and upgrade; If in tabulation, then do not process.
If the survival timer expiry of some non-current registration area correspondences in the tabulation is then deleted this from tabulation, upgrade but do not carry out the position.If the survival timer expiry of current registration area correspondence is then restarted its survival timer, do not upgrade but do not carry out the position.
Based on above-mentioned processing procedure, when system needs call terminal, at first the current registration area of system log (SYSLOG) is expanded, in the registration area after expansion terminal is carried out paging then.Like this, when terminal when boundary vicinity moves, though executing location is upgraded operation, system still can paging to this terminal, and the only corresponding paging processing of execution in suitable paging range of control system preferably of this processing procedure, reduce taking to system resource.
For example, in cordless communication network shown in Figure 1, establishing initial current registration area is RegZone 1 (registration area 1), and RegZone 2 (registration area 2) is not in the tabulation of registration area.When primary importance 1 moves to the second place 2, need carry out location update operations in terminal, and RegZone 2 need be added in the tabulation of registration areas; Then, before the survival timer expiry of RegZone 1 correspondence, when terminal moves to again and is in the 3rd position 3 of RegZone 1 together with primary importance 1, then since RegZone 1 in the tabulation of registration area, so need not to carry out location update operations.And this moment, therefore, when call terminal, system sends beep-page message in RegZone 2 and expansion area scope thereof just can paging arrive described terminal because the current registration area of system log (SYSLOG) is RegZone 2.
And, in cordless communication network shown in Figure 1, be in the terminal of the 3rd position 3 if continue to move to the 4th position 4, then since the 4th position 4 still in RegZone 1 registration area scope, so still do not need to carry out corresponding location update operations.
The inventor finds that there are the following problems at least in the prior art in realizing process of the present invention:
For the above-mentioned terminal that is in the 4th position 4, if this terminal of system's paging, then system according to the current registration area of record will be in the scope of RegZone2 and expansion area thereof broadcast paging messages, but, scope in RegZone2 and expansion area thereof can't paging arrive this terminal, causes paging failure.
And, behind paging failure, also will in whole net scope, retransmit beep-page message, cause paging range to enlarge, taking also of corresponding system resources will increase greatly.
Summary of the invention
Embodiments of the invention provide realizes position method for updating and equipment in a kind of wireless communication system, make wireless communication system when avoiding frequent position to upgrade, and improves paging success rate.
Realize the position method for updating in a kind of wireless communication system, comprising:
When terminal entered other registration areas except that current registration area of record in the registration area tabulation, enable position was upgraded and is triggered timer, and to upgrade trigger overtime when described position, and trigger position upgrades to be operated.
Realize the equipment that the position is upgraded in a kind of wireless communication system, comprising:
Timer upgrade to be triggered in the position, is used for picking up counting when terminal enters other registration areas except that current registration area of registration area tabulation record;
The primary importance update module is used for upgrading the triggering timer expiry in described position, and trigger position upgrades operation.
Realize the position method for updating in a kind of wireless communication system, comprising:
When terminal entered other registration areas except that current registration area of record in the registration area tabulation, then whether monitoring exceeded the scope of current registration area and expansion area thereof when the terminal position, if exceed, then trigger position upgrades and operates.
Realize the equipment that the position is upgraded in a kind of wireless communication system, comprising:
The position monitoring module is used for when terminal enters other registration areas except that current registration area of registration area tabulation record, and whether the monitoring terminal position exceeds the scope of current registration area and expansion area thereof;
Second place update module is used for when described position monitoring module monitors determines that the terminal position exceeds the scope of current registration area and expansion area thereof, and trigger position upgrades operation.
The technical scheme that is provided by the embodiment of the invention described above triggers the timer control position and upgrades operation because terminal is upgraded by the position as can be seen, upgrades when triggering timer expiry when corresponding position, and the timely executing location of terminal is upgraded operation; Perhaps, also can carry out location update operations according to the shift position scope of terminal.Therefore, the embodiment of the invention can so that under the situation of as far as possible lacking occupying system resources the effective success rate of raising system paging.
Description of drawings
Fig. 1 is the schematic diagram of terminal mobile route in the prior art position;
The processing procedure schematic diagram that Fig. 2 provides for the embodiment of the invention;
Fig. 3 is the schematic diagram of terminal mobile route in the embodiment of the invention;
A kind of applicable procedures schematic diagram that Fig. 4 provides for the embodiment of the invention;
The another kind of applicable procedures schematic diagram that Fig. 5 provides for the embodiment of the invention;
The structural representation one that Fig. 6 updates the equipment for the position that the embodiment of the invention provides;
The structural representation two that Fig. 7 updates the equipment for the position that the embodiment of the invention provides;
The structural representation three that Fig. 8 updates the equipment for the position that the embodiment of the invention provides.
Embodiment
In embodiments of the present invention, for reducing the possibility of upgrading the untimely call terminal failure that causes because of the position, provide and realize the scheme that the position is upgraded in a kind of wireless communication system, specifically can trigger the renewal operation of timer control position by upgrading by the position, promptly when the triggering timer expiry is upgraded in corresponding position, executing location is upgraded operation, thereby guarantees that as much as possible terminal is in the paging range of base station all the time.
Wherein, the timing length of corresponding position renewal triggering timer specifically can be set according to the distance and the moving velocity of terminal of current registration area expansion; Perhaps, also can set according to the position update frequency that allows, for example, if the position update frequency that allows more greatly, what then this timing length can be able to be provided with is littler, otherwise what then can be provided with is bigger.
And, in above-mentioned processing procedure, the triggering timer is upgraded in corresponding position can be for one or more, promptly can a corresponding position be set at the one or more registration areas in the tabulation of described registration area and upgrade the triggering timer, the triggering timer is upgraded (at this moment in the position that a correspondence is set as one or several registration area in the tabulation of registration area, a plurality of positions need be set upgrade the triggering timer), perhaps, all the registration area unifications in the tabulation of registration area are provided with a position renewal and trigger timer.
For ease of understanding, be described in detail below in conjunction with the specific implementation of accompanying drawing to the embodiment of the invention to the embodiment of the invention.
Implementation one
In this implementation, when terminal entered other registration areas except that current registration area of record in the registration area tabulation, enable position was upgraded and is triggered timer, and to upgrade trigger overtime when described position, the trigger position renewal.
Wherein, corresponding position is upgraded and is triggered the result that implementation that timer duration sets can obtain after divided by moving velocity of terminal for: the distance of current registration area expansion, perhaps, also can be the corresponding timing length value of determining according to this result;
In addition, the position is upgraded the timing length that triggers timer and also can be set according to the position update frequency that allows, guarantee that as much as possible the renewal of described position triggers timer and can in time trigger corresponding location update operations when terminal exceeds the current registration area spreading range, certainly, based on the restriction of the position update frequency in the system, what also the timing length that triggers timer can be provided with is a little longer.
In this implementation, when entering other registration areas except that current registration area of record in the registration area tabulation, terminal can also restart the survival timer of the registration area correspondence that current terminal enters.
In the technique scheme, can a position renewal triggering timer be set correspondence at the one or more registration areas in the tabulation of described registration area.If upgrading, a corresponding position, each registration area in the tabulation of registration area triggers timer, perhaps, a corresponding position, several registration areas in the tabulation of registration area is upgraded and is triggered timer, a plurality of positions then need be set accordingly upgrade the triggering timer, at this moment, timer picks up counting if triggering is upgraded in one of them position, and then triggering timers are upgraded in other positions all needs to stop timing.Use same position and upgrade and trigger timer if each registration area is unified in the registration area tabulation, then when terminal enters other registration areas except that current registration area of record in the tabulation of registration area, all make this position upgrade the reclocking of triggering timer at every turn.
In this implementation one, as shown in Figure 2, corresponding concrete processing procedure can comprise:
When step 1, terminal enter a new registration area, judge this registration area whether in the tabulation of registration area, if, then execution in step 3, otherwise, execution in step 2;
Wherein, if the survival timer expiry of some non-current registration area correspondences in the tabulation of registration area, with the deletion from tabulation of this registration area item; If the survival timer expiry of current registration area correspondence is then restarted its survival timer; But the survival timer expiry is not trigger position renewal operation all.
Step 3, the triggering timer is upgraded in the position that starts this registration area correspondence, and restarts corresponding survival timer, execution in step 4;
In step, trigger timer if exist the position of other registration area correspondences to upgrade in the tabulation of registration area, and still be in state of activation, then need it is stopped timing.
Step 4 when the triggering timer expiry is upgraded in corresponding position in the tabulation of registration area, then triggers executing location and upgrades operation.
Behind complete corresponding location update operations, if terminal is still movable in current registration area, then enable position is not upgraded the triggering timer, and no longer carries out location update operations.
To be example to comprise the location updating method that a plurality of positions upgrades when triggering timer below,, the application process of the embodiment of the invention will be elaborated in conjunction with Fig. 3, Fig. 4.
With reference to shown in Figure 3, the current registration area of suppose terminal initial is RegZone1, and RegZone2 is in tabulating in the registration area, and then as shown in Figure 4, the processing in the terminal moving process can comprise:
(1) in terminal when primary importance 1 moves to the second place 2 because RegZone2 need carry out location update operations not in the tabulation of registration area, and need add RegZone2 in the tabulation of registration area, and start the survival timer of its correspondence;
(2) before the survival timer expiry of RegZone1 correspondence, terminal moves to the 3rd position 3 that is in RegZone1 with primary importance 1 together again, because RegZone1 is in the tabulation of registration area, the triggering timer is upgraded in the position that then starts the RegZone1 correspondence, stop other positions and upgrade the triggering timer, and restart the survival timer of RegZone1 correspondence, the record current registration area is RegZone2;
(3) continue when the 3rd position 3 moves to the 4th position 4 when this terminal, the position of RegZone1 correspondence is upgraded and is triggered timer expiry in this process, and executing location is upgraded operation.
In above-mentioned processing procedure, when terminal during in the 3rd position 3, because current registration area remains RegZone2, base station system is broadcast paging messages in RegZone2 and expansion area scope thereof, and the 3rd position 3 is in the expansion area scope of RegZone2, so terminal can successfully be received the beep-page message of base station system.When terminal during,,, at this moment,, still can guarantee the success of paging as if base station system broadcast paging messages in RegZone1 and expansion area scope thereof so current registration area has been updated to RegZone1 owing to carried out location update operations in the 4th position 4.Further, when continuing to move to the 5th position 5, still can receive the beep-page message of base station system, effectively reduce the possibility of paging failure as if terminal.
By foregoing description as can be known, because upgrading by the position, terminal triggers the triggering that the timer control position is upgraded, therefore, and can be so that base station broadcast paging messages in current registration area and expansion area scope thereof, can paging increase greatly, thereby improved paging success rate to the possibility of terminal; And owing to reduced the number of times of putting in order the net paging, thereby can reduce taking to system resource.
Implementation two
In this implementation two, adopted positional information to determine whether the trigger position renewal process according to the current place of terminal, in the time of specifically can exceeding the scope of current registration area and expansion area thereof in the terminal shift position, trigger position upgrades operation.
The process whether shift position of corresponding judgment terminal exceeds the scope of current registration area and expansion area thereof can be: base station periodic broadcast position information, i.e. latitude and longitude information in system message.After terminal moved out the registration area, when inserting another registration area, terminal began to detect its position and whether surpasses a thresholding with the registration area frontier distance, and this thresholding can be according to the width setting of expansion area; If displacement has surpassed described thresholding, show that then terminal has moved out the extended boundary of registration area, at this moment, need carry out corresponding location update operations.Certainly, whether the shift position that also can adopt other modes to carry out terminal exceeds the judgment processing of the scope of current registration area and expansion area thereof.
Below in conjunction with Fig. 3, Fig. 5 the realization of this implementation two is elaborated:
With reference to shown in Figure 3, the current registration area of suppose terminal initial is RegZone1, and RegZone2 is in tabulating in the registration area, and then as shown in Figure 5, the processing in the terminal moving process can comprise:
(1) in terminal when primary importance 1 moves to the second place 2 because RegZone2 is in the tabulation of registration area, then trigger position upgrades operation, and RegZone2 is added the registration area tabulation, starts the survival timer of its correspondence;
(2) before the survival timer expiry of RegZone1 correspondence, this terminal moves to the 3rd position 3 that is in RegZone1 with primary importance 1 together again, because RegZone1 is in the tabulation of registration area, so restart the survival timer of RegZone1 correspondence, and need not to carry out location update operations, the current registration area of this moment is RegZone2;
(3) continue because the 4th position 4 exceeds the extended boundary of current registration area RegZone2, therefore, to need trigger position to upgrade operation when the 3rd position 3 moves to the 4th position 4 when this terminal.
In above-mentioned processing procedure,,, therefore do not need trigger position to upgrade operation because the 3rd position 3 does not exceed the extended boundary of current registration area RegZone2 when terminal during in the 3rd position 3; And when end during in the 4th position 4, because current registration area has been updated to RegZone1, and the 5th position 5 do not exceed the extended boundary of current registration area RegZone1, therefore, when if this terminal moves to the 5th position 5, do not need trigger position to upgrade operation yet.
By foregoing description as can be known, because the triggering that the terminal control position is upgraded, in time trigger position upgrades when terminal departs from the base station calling scope, has therefore improved paging success rate.Be that the realization of the embodiment of the invention makes base station broadcast paging messages in current registration area and expansion area scope, can paging increase greatly, thereby improved paging success rate to the possibility of terminal; And owing to reduced the number of times of putting in order the net paging, thereby can reduce taking to system resource.
The embodiment of the invention also provides and has realized the equipment that the position is upgraded in the corresponding wireless communication system, its structure such as Fig. 6 or shown in Figure 7, and the specific implementation structure can comprise:
Timer upgrade to be triggered in the position, is used for picking up counting when terminal enters other registration areas except that current registration area of registration area tabulation record;
The primary importance update module is used for upgrading in described position and triggers timer expiry, and trigger position upgrades operation, with the current registration area of new terminal more.
Optionally, in updating the equipment, this position also comprises the survival timer, be used for when terminal enters other registration areas except that current registration area of registration area tabulation record, starting, when the survival timer expiry of non-current registration area correspondence (registration area of overtime survival timer correspondence is not the current registration area of terminal), then trigger the operation of this non-current registration area of deletion, when the survival timer expiry of current registration area correspondence (registration area of overtime survival timer correspondence is the current registration area of terminal), then restart the survival timer of this current registration area correspondence.
In updating the equipment in above-mentioned position, the corresponding setting in one or more registration areas during described position is upgraded and triggered timer and tabulate in the registration area:
Upgrade when triggering timer when comprising a plurality of positions in the equipment, as shown in Figure 6, this equipment can also comprise judging treatmenting module, be used for when a position renewal triggering timer picks up counting, make other positions upgrade the triggering timer and all stop timing, thereby avoid frequent executing location to upgrade operation.
When comprising a position renewal triggering timer in the equipment, as shown in Figure 7, this equipment can also comprise the reclocking processing module, be used for when terminal enters other registration areas except that current registration area of registration area tabulation record at every turn, making described position upgrade the reclocking of triggering timer.
The embodiment of the invention also provides in another wireless communication system the equipment of realizing that the position is upgraded, its structure as shown in Figure 8, the specific implementation structure comprises following processing unit:
The position monitoring module is used to judge whether the terminal position exceeds the scope of current registration area and expansion area thereof;
Second place update module is used for when described position monitoring module judges that the terminal position exceeds the scope of current registration area and expansion area thereof, and trigger position upgrades operation.
The equipment that realization position in the embodiment of the invention is upgraded can be arranged in the terminal equipment, perhaps, also can upgrade in the apparatus operating for other trigger executing location.
Above-mentioned each embodiment of the invention can but be not limited to be applied in the wireless communication systems such as CDMA2000 EV-DO, CDMA-1X, WCDMA.
In sum, compare in various embodiments of the present invention and the prior art, because upgrading by the position, terminal triggers timer or the renewal of position monitoring module controls trigger position, guarantee the timely executing location renewal of terminal operation, thereby can under the prerequisite of saving system resource, improve the paging terminal success rate.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (12)
1, realize the position method for updating in a kind of wireless communication system, it is characterized in that, comprising:
When terminal entered other registration areas except that current registration area of record in the registration area tabulation, enable position was upgraded and is triggered timer, and to upgrade trigger overtime when described position, and trigger position upgrades to be operated.
2, method according to claim 1 is characterized in that, distance and the moving velocity of terminal setting of the timing length of triggering timer according to the current registration area expansion upgraded in described position, perhaps, sets according to the position update frequency that allows.
3, method according to claim 1 is characterized in that, this method also comprises:
When terminal enters other registration areas except that current registration area of record in the registration area tabulation, restart the survival timer of the registration area correspondence that current terminal enters.
4, according to claim 1,2 or 3 described methods, it is characterized in that, a registration area correspondence in the tabulation of described registration area is provided with a position and upgrades the triggering timer, and perhaps, a plurality of registration areas correspondence in the tabulation of described registration area is provided with a position renewal and triggers timer.
5, method according to claim 4 is characterized in that, upgrades when triggering timer when comprising a plurality of positions, if position upgrades and trigger timer and pick up counting, then other positions are upgraded and triggered timers and all stop timing; Upgrade when triggering timer when comprising position, then when terminal enters other registration areas except that current registration area of record in the tabulation of registration area, all make this position upgrade the reclocking of triggering timer at every turn.
6, realize the equipment that the position is upgraded in a kind of wireless communication system, it is characterized in that, comprising:
Timer upgrade to be triggered in the position, is used for picking up counting when terminal enters other registration areas except that current registration area of registration area tabulation record;
The primary importance update module is used for upgrading the triggering timer expiry in described position, and trigger position upgrades operation.
7, equipment according to claim 6 is characterized in that, this equipment also comprises:
The survival timer, be used for when terminal enters other registration areas except that current registration area of registration area tabulation record, starting, when the survival timer expiry of non-current registration area correspondence, trigger the operation of this non-current registration area of deletion, when the survival timer expiry of current registration area correspondence, restart the survival timer of current registration area correspondence.
8, according to claim 6 or 7 described equipment, it is characterized in that, the renewal of described position triggers the corresponding setting in a registration area in timer and the registration area tabulation, perhaps, and the corresponding setting in a plurality of registration areas during described position is upgraded and triggered timer and tabulate in the registration area.
9, equipment according to claim 8 is characterized in that, upgrades when triggering timer when comprising a plurality of positions in the equipment, and this equipment also comprises:
Judging treatmenting module is used for making other positions upgrade triggering timers and all stopping timing when a position renewal triggering timer picks up counting.
10, equipment according to claim 8 is characterized in that, when comprising a position renewal triggering timer in the equipment, this equipment also comprises:
The reclocking processing module is used for making described position upgrade the reclocking of triggering timer when terminal enters other registration areas except that current registration area of registration area tabulation record at every turn.
11, realize the position method for updating in a kind of wireless communication system, it is characterized in that, comprising:
When terminal entered other registration areas except that current registration area of record in the registration area tabulation, then whether monitoring exceeded the scope of current registration area and expansion area thereof when the terminal position, if exceed, then trigger position upgrades and operates.
12, realize the equipment that the position is upgraded in a kind of wireless communication system, it is characterized in that, comprising:
The position monitoring module is used for when terminal enters other registration areas except that current registration area of registration area tabulation record, and whether the monitoring terminal position exceeds the scope of current registration area and expansion area thereof;
Second place update module is used for when described position monitoring module monitors determines that the terminal position exceeds the scope of current registration area and expansion area thereof, and trigger position upgrades operation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710178733A CN101453728B (en) | 2007-12-04 | 2007-12-04 | Method and apparatus for implementing location update in radio communication system |
| PCT/CN2008/073304 WO2009076849A1 (en) | 2007-12-04 | 2008-12-02 | Method and device for implementing location update in wireless communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710178733A CN101453728B (en) | 2007-12-04 | 2007-12-04 | Method and apparatus for implementing location update in radio communication system |
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| Publication Number | Publication Date |
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| CN101453728A true CN101453728A (en) | 2009-06-10 |
| CN101453728B CN101453728B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710178733A Active CN101453728B (en) | 2007-12-04 | 2007-12-04 | Method and apparatus for implementing location update in radio communication system |
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| CN (1) | CN101453728B (en) |
| WO (1) | WO2009076849A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761937A (en) * | 2011-04-28 | 2012-10-31 | 联芯科技有限公司 | Searching method and searching device of mobile terminal |
| CN101674648B (en) * | 2009-09-23 | 2013-01-02 | 北京邮电大学 | Periodic location update method of satellite mobile communication network, system and mobile terminal |
| CN110149693A (en) * | 2019-04-22 | 2019-08-20 | 熊猫电子集团有限公司 | The calculating and update method of satellite mobile communication network, system, periodic location update duration |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988715B (en) * | 2005-12-23 | 2010-05-05 | 中兴通讯股份有限公司 | Method for setting periodical position renewing timer time length |
| EP1843523B1 (en) * | 2006-04-03 | 2011-06-22 | Alcatel Lucent | A method of performing a location update of a mobile station to a mobile communication network, a mobile station, and a mobile communication network |
| CN101072421A (en) * | 2006-05-12 | 2007-11-14 | 西门子通信技术（北京）有限公司 | Position domain dynamic allocation method and system for cellular network |
-
2007
- 2007-12-04 CN CN200710178733A patent/CN101453728B/en active Active
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2008
- 2008-12-02 WO PCT/CN2008/073304 patent/WO2009076849A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101674648B (en) * | 2009-09-23 | 2013-01-02 | 北京邮电大学 | Periodic location update method of satellite mobile communication network, system and mobile terminal |
| CN102761937A (en) * | 2011-04-28 | 2012-10-31 | 联芯科技有限公司 | Searching method and searching device of mobile terminal |
| CN102761937B (en) * | 2011-04-28 | 2015-05-20 | 联芯科技有限公司 | Searching method and searching device of mobile terminal |
| CN110149693A (en) * | 2019-04-22 | 2019-08-20 | 熊猫电子集团有限公司 | The calculating and update method of satellite mobile communication network, system, periodic location update duration |
| CN110149693B (en) * | 2019-04-22 | 2020-09-18 | 熊猫电子集团有限公司 | Satellite mobile communication network, system, and method for calculating and updating periodic position updating duration |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009076849A1 (en) | 2009-06-25 |
| CN101453728B (en) | 2012-09-05 |
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