CN104378731A - Blind switching or blind redirection method and system and associated equipment - Google Patents
Blind switching or blind redirection method and system and associated equipment Download PDFInfo
- Publication number
- CN104378731A CN104378731A CN201310350353.XA CN201310350353A CN104378731A CN 104378731 A CN104378731 A CN 104378731A CN 201310350353 A CN201310350353 A CN 201310350353A CN 104378731 A CN104378731 A CN 104378731A
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- blind
- terminal
- redirected
- base station
- handover
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
Abstract
The invention discloses a blind switching or blind redirection method and system and associated equipment. The method comprises the steps that when blind switching or blind redirection is judged to be needed in a terminal according to a preset trigger condition, position information obtained by the terminal through an auxiliary GPS function is obtained through a current service base station of the terminal; the distance between the terminal and adjacent base stations is calculated through the service base station according to the position information and preset position information of the adjacent base stations, a blind switching or blind redirection target base station is determined, and blind switching or blind redirection is carried out. According to the method and system and the associated equipment, the problems that in the prior art, due to the fact that blind switching or blind redirection fails, user experience is influenced, and the base stations need to have access to the internet again, and network resources are wasted are effectively solved.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of blind handover or blind redirected method, system and relevant device.
Background technology
In modern wireless communications networks, employing be cellular network topologies structure.There are other much adjacent base stations around the base station of a base station coverage, and usually only have one of them or several base station to be suitable as terminal blind handover or blind redirected target BS, blind handover or blind being redirected refer to that base station does not require that terminal measures adjacent area reporting, but direct command terminal switch to or be redirected to certain target BS.Because do not have measurement result to support as selection after all, base station blind handover or be blindly redirected the target BS likely selected and improper, thus lead to the failure, affect Consumer's Experience, if repeatedly there is repeatedly unsuccessful blind handover or blind redirected, also can consumption of network resources.
Summary of the invention
In view of above-mentioned analysis, the present invention aims to provide a kind of blind handover or blind redirected method, system and relevant device, unsuccessfully affects Consumer's Experience and the problem of consumption of network resources in order to solve blind handover or blind being redirected in prior art.
Object of the present invention is mainly achieved through the following technical solutions:
Blind handover or a blind redirected method, the method comprises:
Terminal according to the trigger condition preset judge to need blind handover or blind redirected time, the current serving BS of described terminal obtains the positional information that described terminal utilizes assistant GPS function to obtain;
The distance of described serving BS according to described positional information and the positional information calculation of each adjacent base station that prestores between terminal and each adjacent base station, determines blind handover or blind redirected target BS and carries out blind handover or to be blindly redirected.
Preferably, described default trigger condition comprises:
The signal strength signal intensity of the current serving BS that described terminal receives is lower than the threshold value preset.
Preferably, determine that the step of blind handover or blind redirected target BS specifically comprises:
Described serving BS selects the adjacent base station nearest with described terminal as blind handover or blind redirected target BS.
Preferably, carry out blind handover or blind be redirected after, also comprise:
When described terminal judges blind handover or blind redirected failed, described serving BS, according to the triggering of described terminal, reselects target BS.
Present invention also offers a kind of terminal, this terminal comprises:
First acquiring unit, for judge according to the trigger condition preset to need blind handover or blind redirected time, use assistant GPS function to obtain the positional information of terminal;
Transmitting element, for sending to current serving BS by described positional information;
Switching and be redirected unit, carrying out blind handover or blind redirected for answering the control of described serving BS.
Preferably, described first acquiring unit specifically for, according to the signal strength signal intensity of the current serving BS received lower than the threshold determination preset need blind handover or blind redirected time, use assistant GPS function to obtain the positional information of terminal.
Preferably, also comprise: judging unit;
Described judging unit, for judging blind handover or blindly resetting whether success, if success, then terminates, if failure, triggers described serving BS and reselect target BS.
Invention further provides a kind of base station, this base station comprises:
Second acquisition unit, for terminal according to preset trigger condition judge need blind handover or blind redirected time, obtain the positional information that described terminal utilizes assistant GPS function to obtain;
Computing unit, for the distance according to described positional information and the positional information calculation of each adjacent base station that prestores between terminal and each adjacent base station;
Determining unit, for the distance determination blind handover between the described terminal that calculates according to described computing unit and each adjacent base station or blind redirected target BS, and triggers described terminal and carries out blind handover or to be blindly redirected.
Preferably, described determining unit specifically for, distance between the described terminal calculated according to described computing unit and each adjacent base station is selected with the nearest adjacent base station of described terminal as blind handover or blind redirected target BS, and triggers described terminal and carry out blind handover or to be blindly redirected.
The present invention has reoffered again a kind of blind handover or blind redirected system, and this system comprises: the terminal described in above-mentioned any one and base station.
Beneficial effect of the present invention is as follows:
A kind of blind handover provided by the invention or blind redirected method, system and relevant device, terminal need to carry out blind handover or blind redirected time, the positional information of described terminal is obtained by assistant GPS function, pass through the distance of base station computing terminal and each adjacent base station again, select the adjacent base station nearest with described terminal as blind handover or blind redirected target BS, thus effectively prevent blind handover or blind being redirected in prior art and unsuccessfully affect Consumer's Experience, again again access the problem of consumption of network resources, can Consumer's Experience be promoted and save Internet resources.
Other features and advantages of the present invention will be set forth in the following description, and the becoming apparent from specification of part, or by implementing the present invention and understanding.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Fig. 1 is existing A-GPS fundamental diagram;
Fig. 2 is the blind handover of the embodiment of the present invention 1 or the flow chart of blind redirected method;
Fig. 3 is the schematic diagram that the terminal cross different network formats in the embodiment of the present invention 1 accesses again;
The flow chart of the another kind of blind handover in Fig. 4 embodiment of the present invention 1 or blind redirected method;
Fig. 5 is the flow chart being coordinated select target base station by A-GPS in the embodiment of the present invention 1;
Fig. 6 is the terminal structure schematic diagram of the embodiment of the present invention 2;
Fig. 7 is the structural representation of the another kind of terminal of the embodiment of the present invention 2;
Fig. 8 is the architecture of base station schematic diagram of the embodiment of the present invention 3;
Fig. 9 is the blind handover of the embodiment of the present invention 4 or blind redirected system schematic.
Embodiment
Specifically describe the preferred embodiments of the present invention below in conjunction with accompanying drawing, wherein, accompanying drawing forms the application's part, and together with embodiments of the present invention for explaining principle of the present invention.For purpose of clarity and simplification, when it may make theme of the present invention smudgy, illustrating in detail of known function and structure in device described herein will be omitted.
Figure 1 shows that the A-GPS fundamental diagram of the embodiment of the present invention, as shown in Figure 1, as the high-precision mobile positioning technique of one, A-GPS obtains the positional information of terminal jointly by terminal and GPS assist location information, thus enhance positioning precision, and improved for the first locking time.
Embodiment 1
The invention provides a kind of blind handover based on assistant GPS (Assisted GPS, A-GPS) and blind redirected method, see Fig. 2, the method comprises:
S201, terminal according to the trigger condition preset judge to need blind handover or blind redirected time, use assistant GPS function to obtain the positional information of described terminal;
Described default trigger condition comprises: receive current be the signal strength signal intensity variation influence link-quality of serving BS.Certain those skilled in the art also can arrange other trigger condition according to actual needs.
The step that described use assistant GPS function obtains the positional information of described terminal specifically comprises:
Base station and gps satellite is used jointly to obtain the positional information of described terminal.
The present invention obtains the positional information of terminal jointly by terminal and GPS assist location information, and the positioning flow of the A-GPS in the present invention is as follows:
(1) terminal first by base station address itself by Internet Transmission to location-server;
(2) supplementary (GPS almanac and revise data, GPS ephemeris, gps navigation message etc.) that calculates according to the Position Approximate of this terminal transmission GPS supplementary (GPS catches supplementary, GPS positioning auxiliary information, GPS sensitivity supplementary, gps satellite working condition information etc.) relevant to this position and terminal location of location-server, utilize these information, the A-GPS module of terminal can catch satellite very soon, to promote the ability of the first locking time of gps signal, and receive GPS primary signal;
(3) terminal restituted signal after receiving GPS primary signal, computing terminal is to the pseudorange (pseudorange is namely by the distance that various GPS error affects) of satellite;
(4) assist location is calculated according to network side, terminal by measure GPS pseudo-range information by Internet Transmission to location-server, location-server completes the calculating to GPS information according to the GPS pseudo-range information transmitted with from the supplementary of other positioning equipments (as differential GPS base station etc.), and estimates the position of this terminal; According to end side computing network location, the supplementary of other positioning equipments that terminal transmits according to the GPS pseudo-range information measured and network completes the calculating to GPS information, and the terminal positional information of estimation is passed to location-server;
Location-server by the position of this terminal by Internet Transmission to application platform;
Auxiliary receiver obtains reference data (clock, ephemeris, available constellation, reference position etc.) from satellite in real time, is supplied to location-server by network.When terminal needs locator data, location-server provides A-GPS auxiliary data by wireless network to terminal, to strengthen its positioning time, thus greatly improves the sensitivity of A-GPS receiver module.
S202, the positional information of described terminal obtained is sent to current serving BS;
S203, the serving BS distance according to the positional information of described terminal and the positional information calculation of each adjacent base station that prestores between terminal and each adjacent base station, determines blind handover or blind redirected target BS and carries out blind handover or to be blindly redirected.
The determination blind handover of the embodiment of the present invention or the step of blind redirected target BS specifically comprise: select the base station nearest with described terminal as blind handover or blind redirected target BS, by selecting nearest base station as target BS, thus effectively prevent blind handover or blind being redirected in prior art and unsuccessfully affect Consumer's Experience and the problem of consumption of network resources.
The embodiment of the present invention carry out blind handover or blind be redirected after, also comprise:
Judge blind handover or blind redirected whether successful, if so, then terminate, otherwise triggering current is that serving BS reselects target BS.To ensure blind handover or blind redirected success.
With a concrete example, the present invention is described in detail below, is that terminal carries out blind handover or blind redirected schematic diagram because of mobile shown in Fig. 3.Suppose that base station B covers a crossroad, around it, have the adjacent base stations such as A, C, D, E, F.The coverage of each base station represents by dashed circle.Terminal 1 moves to base station C along highway at the covering edge of base station B.
When terminal reaches blind handover or blind redirected condition, according to the determined positional information of terminal A-GPS, and the positional information calculation physical distance at place, base station, as shown in Figure 3, the current positional information of terminal is UE(33,117) and, the longitude and latitude positional information of base station C is C(34,117), the longitude and latitude positional information of base station D is D(31,119) and, the longitude and latitude positional information of base station E is E(34,119), according to distance calculating method
wherein x
1, x
2be the longitude coordinate in two geographical position, y
1, y
2it is the latitude coordinates in two geographical position, the distance that can calculate terminal and base station C is thus N=1, the distance of terminal and base station D is L=2.82, the distance of terminal and base station E is M=2.25, can show that N is the minimum value of its middle distance, therefore according to the method that minimum distance is selected, base station C is selected as the target BS switched.
Fig. 4 is the blind handover of another kind based on A-GPS proposed by the invention and the flow chart of blind redirected method, and as shown in Figure 4, the method comprises:
S401, judge whether to need blind handover or to be blindly redirected, if so, entering S402, otherwise enter S408;
S402, terminal calculate himself positional information by assistant GPS, and issue Current Serving BTS;
S403, distance between base station computing terminal and all adjacent base stations;
S404, base station selected adjacent base station are recently as target BS;
S405, base station commands terminal carry out blind handover or blind redirected to target BS;
S406, judge terminal blind handover or be blindly redirected whether success, if not, carrying out S407, if so, enter S409.
S407, current serving BS reselect target BS, and enter S405;
S408, according to band measure method carry out blind handover or blind be redirected;
S409, end.
In this step, current serving BS can reselect nearest base station as target BS, also can chosen position other base stations slightly far away as blind handover or blind redirected target BS.
Fig. 5 is a kind of flow chart being coordinated select target base station by A-GPS proposed by the invention.As shown in Figure 5, when needs carry out blind handover or blind redirected time, positional information is reported backstage location-server by terminal, then by location-server, positional information is passed to serving BS again, by the distance between serving BS computing terminal and all adjacent base stations, the nearest base station of selected distance is as target BS, and send instructions to terminal, its trial is allowed to carry out blind handover or blind orientation, as shown in Figure 5, terminal attempts the access base station 3 nearest apart from it, access successfully, and return access successful information to serving BS, target BS 3 is updated to serving BS simultaneously.
A kind of blind handover provided by the invention or blind redirected method, terminal need to carry out blind handover or blind redirected time, the positional information of described terminal is obtained by assistant GPS function, again by the distance of base station computing terminal with each adjacent in advance base station, select the base station nearest with described terminal as blind handover or blind redirected target BS, thus effectively prevent blind handover or blind being redirected in prior art and unsuccessfully affect Consumer's Experience, again again access the problem of consumption of network resources.
Embodiment 2
Embodiments provide a kind of terminal, see Fig. 6, comprising:
First acquiring unit, for judge according to the trigger condition preset to need blind handover or blind redirected time, use assistant GPS function to obtain the positional information of terminal;
Transmitting element, for sending to current serving BS by described positional information;
Switching and be redirected unit, carrying out blind handover or blind redirected for answering the control of described serving BS.
Execution mode one
First acquiring unit specifically for, according to the signal strength signal intensity of the current serving BS received lower than the threshold determination preset need blind handover or blind redirected time, use assistant GPS function to obtain the positional information of terminal.
Execution mode two
This terminal can also comprise: judging unit, see Fig. 7;
Described judging unit, for judging blind handover or blindly resetting whether success, if success, then terminates, if failure, triggers described serving BS and reselect target BS.
Embodiment 3
The invention provides a kind of base station, see Fig. 8, this base station comprises:
Second acquisition unit, for terminal according to preset trigger condition judge need blind handover or blind redirected time, obtain the positional information that described terminal utilizes assistant GPS function to obtain;
Computing unit, for the distance according to described positional information and the positional information calculation of each adjacent base station that prestores between terminal and each adjacent base station;
Determining unit, for the distance determination blind handover between the described terminal that calculates according to described computing unit and each adjacent base station or blind redirected target BS, and triggers described terminal and carries out blind handover or to be blindly redirected.
Execution mode one
Determining unit specifically for, distance between the described terminal calculated according to described computing unit and each adjacent base station is selected with the nearest adjacent base station of described terminal as blind handover or blind redirected target BS, and triggers described terminal and carry out blind handover or to be blindly redirected.
Embodiment 4
Embodiments provide and a kind ofly can realize the blind handover of the method for embodiment 1 or blind redirected system, see Fig. 9, comprise any one base station in any one terminal of embodiment 2 and embodiment 4.
In sum, a kind of blind handover provided by the invention or blind redirected method, system and relevant device, terminal need to carry out blind handover or blind redirected time, the positional information of described terminal is obtained by assistant GPS function, again by the distance of base station computing terminal with each adjacent in advance base station, select the base station nearest with described terminal as blind handover or blind redirected target BS, thus effectively prevent blind handover or blind being redirected in prior art and unsuccessfully affect Consumer's Experience, again again access the problem of consumption of network resources.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change 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 claims.
Claims (10)
1. blind handover or a blind redirected method, is characterized in that, comprising:
Terminal according to the trigger condition preset judge to need blind handover or blind redirected time, the current serving BS of described terminal obtains the positional information that described terminal utilizes assistant GPS function to obtain;
The distance of described serving BS according to described positional information and the positional information calculation of each adjacent base station that prestores between terminal and each adjacent base station, determines blind handover or blind redirected target BS and carries out blind handover or to be blindly redirected.
2. method according to claim 1, is characterized in that, described default trigger condition comprises:
The signal strength signal intensity of the current serving BS that described terminal receives is lower than the threshold value preset.
3. method according to claim 1 and 2, is characterized in that, determines that the step of blind handover or blind redirected target BS specifically comprises:
Described serving BS selects the adjacent base station nearest with described terminal as blind handover or blind redirected target BS.
4. method according to claim 1 and 2, is characterized in that, carry out blind handover or blind be redirected after, also comprise:
When described terminal judges blind handover or blind redirected failed, described serving BS, according to the triggering of described terminal, reselects target BS.
5. a terminal, is characterized in that, comprising:
First acquiring unit, for judge according to the trigger condition preset to need blind handover or blind redirected time, use assistant GPS function to obtain the positional information of terminal;
Transmitting element, for sending to current serving BS by described positional information;
Switching and be redirected unit, carrying out blind handover or blind redirected for answering the control of described serving BS.
6. terminal according to claim 5, is characterized in that,
Described first acquiring unit specifically for, according to the signal strength signal intensity of the current serving BS received lower than the threshold determination preset need blind handover or blind redirected time, use assistant GPS function to obtain the positional information of terminal.
7. the terminal according to claim 5 or 6, is characterized in that, also comprises: judging unit;
Described judging unit, for judging blind handover or blindly resetting whether success, if success, then terminates, if failure, triggers described serving BS and reselect target BS.
8. a base station, is characterized in that, comprising:
Second acquisition unit, for terminal according to preset trigger condition judge need blind handover or blind redirected time, obtain the positional information that described terminal utilizes assistant GPS function to obtain;
Computing unit, for the distance according to described positional information and the positional information calculation of each adjacent base station that prestores between terminal and each adjacent base station;
Determining unit, for the distance determination blind handover between the described terminal that calculates according to described computing unit and each adjacent base station or blind redirected target BS, and triggers described terminal and carries out blind handover or to be blindly redirected.
9. base station according to claim 8, is characterized in that,
Described determining unit specifically for, distance between the described terminal calculated according to described computing unit and each adjacent base station is selected with the nearest adjacent base station of described terminal as blind handover or blind redirected target BS, and triggers described terminal and carry out blind handover or to be blindly redirected.
10. blind handover or a blind redirected system, is characterized in that, comprising: the terminal in claim 5 to 7 described in any one and the base station described in claim 8 or 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350353.XA CN104378731A (en) | 2013-08-12 | 2013-08-12 | Blind switching or blind redirection method and system and associated equipment |
| PCT/CN2013/087969 WO2014161329A1 (en) | 2013-08-12 | 2013-11-27 | Blind handover or blind redirection method, system and related device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310350353.XA CN104378731A (en) | 2013-08-12 | 2013-08-12 | Blind switching or blind redirection method and system and associated equipment |
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| CN104378731A true CN104378731A (en) | 2015-02-25 |
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| CN201310350353.XA Pending CN104378731A (en) | 2013-08-12 | 2013-08-12 | Blind switching or blind redirection method and system and associated equipment |
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| CN (1) | CN104378731A (en) |
| WO (1) | WO2014161329A1 (en) |
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| WO2018053766A1 (en) * | 2016-09-22 | 2018-03-29 | 广东欧珀移动通信有限公司 | Communications method, terminal device and network device |
| CN108156589A (en) * | 2017-12-22 | 2018-06-12 | 横琴国际知识产权交易中心有限公司 | A kind of paging method and system based on Home eNodeB |
| WO2018214049A1 (en) * | 2017-05-24 | 2018-11-29 | 哈尔滨海能达科技有限公司 | Base station switching method and clustering terminal |
| CN109561478A (en) * | 2018-11-02 | 2019-04-02 | 京信通信系统（中国）有限公司 | The blind reorientation method of user terminal, device, computer storage medium and equipment |
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| CN106034339A (en) * | 2015-03-09 | 2016-10-19 | 中兴通讯股份有限公司 | Method and device for blind handover or blind redirection in mobile communication system |
| CN107484215B (en) * | 2017-09-04 | 2020-06-19 | 深圳市盛路物联通讯技术有限公司 | Method for recommending access base station based on antenna received signal strength and mobile terminal |
| EP3462775A1 (en) * | 2017-09-29 | 2019-04-03 | British Telecommunications public limited company | Blind handover when approaching a rlf location |
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| CN112888026B (en) * | 2021-01-20 | 2022-12-27 | 维沃移动通信有限公司 | Redirection failure processing method and device, electronic equipment and readable storage medium |
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| WO2018053766A1 (en) * | 2016-09-22 | 2018-03-29 | 广东欧珀移动通信有限公司 | Communications method, terminal device and network device |
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| CN109691173B (en) * | 2016-09-22 | 2021-02-09 | Oppo广东移动通信有限公司 | Communication method, terminal equipment and network equipment |
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| WO2018214049A1 (en) * | 2017-05-24 | 2018-11-29 | 哈尔滨海能达科技有限公司 | Base station switching method and clustering terminal |
| CN108156589A (en) * | 2017-12-22 | 2018-06-12 | 横琴国际知识产权交易中心有限公司 | A kind of paging method and system based on Home eNodeB |
| CN109561478A (en) * | 2018-11-02 | 2019-04-02 | 京信通信系统（中国）有限公司 | The blind reorientation method of user terminal, device, computer storage medium and equipment |
| CN109561478B (en) * | 2018-11-02 | 2021-12-28 | 京信网络系统股份有限公司 | User terminal blind redirection method, device, computer storage medium and equipment |
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| Publication number | Publication date |
|---|---|
| WO2014161329A1 (en) | 2014-10-09 |
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