CN102238475A - Charging method and system for specified area - Google Patents

Charging method and system for specified area Download PDF

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Publication number
CN102238475A
CN102238475A CN2011102142944A CN201110214294A CN102238475A CN 102238475 A CN102238475 A CN 102238475A CN 2011102142944 A CN2011102142944 A CN 2011102142944A CN 201110214294 A CN201110214294 A CN 201110214294A CN 102238475 A CN102238475 A CN 102238475A
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specific region
user
geographical coordinate
geometry parameter
center
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丁鹏
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Huawei Technologies Co Ltd
Huawei Software Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The embodiment of the invention provides a charging method and a charging system for a specified area, and aims to enhance user perception and experiences and flexibly set the specified area to realize the flexible popularization and application of services in the specified area. The method comprises the following steps of: computing geometric parameters corresponding to the shape of the specified area according to the geographical position of the specified area selected by a user; acquiring the center position geographical coordinates (Palpha, Pbeta) of a cell currently with the user and the center position geographical coordinates (Oalpha, Obeta) of the specified area; and judging whether the user is positioned in the specified area or not according to the geometric parameters, the center position geographical coordinates (Palpha, Pbeta) of the cell currently with the user and the center position geographical coordinates (Oalpha, Obeta) of the specified area, and if the user is judged to be positioned in the specified area, charging the user by adopting a special charging scheme. By the method provided by the embodiment of the invention, the perception and experiences of the user can be enhanced; and the method and the system are favorable for the popularization and application of the services in the specified area.

Description

A kind of charging method of specific region and system
Technical field
The present invention relates to the communications field, relate in particular to a kind of charging method and system of specific region.
Background technology
At present in the mobile communication billing system, the specific region that provides, for example home cell (Home Zone) or area, city (City Zone) function all are based on concrete sign (ID) numbering of cellular cell (Cell).In concrete charging flow, charge system reports base station, cellular cell information in the charging message according to exchange side, judge user's position, thereby it is preferential to give the certain conversation of user, and for example, cost of the phone call gives a discount, gives certain resource or the like.
The billing scheme based on cellular cell ID that prior art provides is: operator is based on cellular cell ID definition specific region, wherein, constraint to area (Zone) and cellular cell is, a Zone comprises one or more cellular cell, and a cellular cell can only belong to a Zone.The user can be provided with the specific region (for example, home cell) of 5 Zone for oneself, if the user converses in the specific region, then can enjoy privileges.Operator can also certain or some Zone be set to the Zone of system's special preferential treatment rate, when the user converses in these Zone, also can obtain preferential.
Prior art provides billing scheme that many restrictive conditions are arranged in fact, for example, because cellular cell ID is that operator defines voluntarily according to the base station coverage condition, therefore, cellular cell ID can't directly embody concrete geographical location information, only based on the charging way of cellular cell ID, user's perception and experience non-constant; On the other hand, the limited size of specific region is in the size of cellular cell, and, a cellular cell can only belong to a Zone, the position of Zone and Zone can't intersect, and the user can't be provided with the size of Zone voluntarily, can't define the geographic range of charging Zone flexibly.
Summary of the invention
The embodiment of the invention provides a kind of charging method and system of specific region, to strengthen user's perception and experience, the specific region is set flexibly to realize specific region promoting service and application flexibly.
The embodiment of the invention provides a kind of charging method of specific region, and described method comprises:
The geometry parameter of the shape correspondence of described specific region is calculated in the geographical position of the specific region of selecting according to the user;
Obtain the center geographical coordinate (P of the current place of user cellular cell α, P β) and the center geographical coordinate (O of described specific region α, O β);
Center geographical coordinate (P by described geometry parameter, the current place of described user cellular cell α, P β) and the center geographical coordinate (O of described specific region α, O β) judge whether described user is positioned at described specific region, if then adopt special billing scheme that described user is chargeed.
The embodiment of the invention provides a kind of charge system of specific region, and described system comprises:
The geometry parameter computing module is used for the geographical position according to the specific region of user's selection, calculates the geometry parameter of the shape correspondence of described specific region;
The geographical coordinate acquisition module is used to obtain the center geographical coordinate (P of the current place of user cellular cell α, P β) and the center geographical coordinate (O of described specific region α, O β);
The charging processing module is used for being calculated by described geometry parameter computing module the center geographical coordinate (P of the current place of the described user cellular cell that gained geometry parameter, described geographical coordinate acquisition module obtain α, P β) and the center geographical coordinate (O of described specific region α, O β) judge whether described user is positioned at described specific region, if then adopt special billing scheme that described user is chargeed.
From the charging method of the specific region that the invention described above embodiment provides as can be known, because system is the geographical position according to the specific region of user's selection, calculate the geometry parameter of the shape correspondence of described specific region, and then by the center geographical coordinate (P of described geometry parameter, the current place of the user cellular cell that obtains α, P β) and the center geographical coordinate (O of specific region α, O β) judge whether described user is positioned at described specific region.Therefore, the method that the embodiment of the invention provides can allow the user learn the geographical position of specific region, own place intuitively, so, can strengthen user's perception and experience; On the other hand, the geographical position of the specific region that system can select according to the user is provided with the size of specific region flexibly, and so, different specific regions can juxtaposition, and then helps the business of promotion and application specific region.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, to do to introduce simply to the accompanying drawing of required use in prior art or the embodiment description below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those skilled in the art, can also obtain other accompanying drawing as these accompanying drawings.
Fig. 1 is the charging method schematic flow sheet of a kind of specific region of providing of the embodiment of the invention;
Fig. 2 is the schematic diagram of the scope of the home cell that provides of the embodiment of the invention less than the scope of the cellular cell at this home cell place;
Fig. 3 is all stay out a schematic diagram within the cell range of front yard of the central point of other cellular cell of providing of the embodiment of the invention;
Fig. 4 is the charge system structural representation of the specific region that provides of the embodiment of the invention;
Fig. 5 is the charge system structural representation of the specific region that provides of another embodiment of the present invention;
Fig. 6 is the charge system structural representation of the specific region that provides of another embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those skilled in the art obtained belongs to the scope of protection of the invention.
See also accompanying drawing 1 and be the charging method schematic flow sheet of a kind of specific region that the embodiment of the invention provides, mainly comprise step:
S101, the geometry parameter of the shape correspondence of described specific region is calculated in the geographical position of the specific region of selecting according to the user.
In embodiment provided by the invention, described specific region is meant the regional extent of enjoying the preferential or special rate of rate, in this regional extent, it is preferential that operator can release various rate, for example, at the rechargeable card of specific region, use this rechargeable card after, can obtain a series of resources such as the amount of money, the duration of call and GPRS flow, but this resource of giving only allows to use in the specific region.Because computation schema can be varied, therefore, the size of specific region can be provided with flexibly.
Unlike the prior art, in embodiment provided by the invention, the user selects the ID of cellular cell to select the specific region, but as long as select the geographical position of specific region intuitively, for example, oneself position of user, company position and own school position etc., system just can register the position of this specific region automatically, the geographical position of the specific region of selecting according to the user, predefined computation schema in the employing system calculates the geometry parameter of the shape correspondence of described specific region.For example, the shape of supposing the specific region is a rectangle, then can calculate this rectangular length and width or the like.
S102 obtains the center geographical coordinate (P of the current place of user cellular cell α, P β) and the center geographical coordinate (O of described specific region α, O β).
Center geographical coordinate (the P of the current place of user cellular cell α, P β), the center geographical coordinate (O of specific region α, O β) all can use longitude and latitude to represent.Internal system can be stored first mapping table and second mapping table, and first mapping table has write down the sign of cellular cell and the center geographical coordinate (P of described cellular cell α, P β) mapping relations, second mapping table has write down the center geographical coordinate (O of specific region information and described specific region α, O β) mapping relations.Therefore, as one embodiment of the invention, system can be according to the sign of the cellular cell that reports in user's current talking message, by inquiring about the center geographical coordinate (P that first mapping table obtains the current place of user cellular cell α, P β), according to the specific region information of user's registration, by inquiring about the center geographical coordinate (O that second mapping table obtains described specific region α, O β).
S103 is by the center geographical coordinate (P of described geometry parameter, the current place of described user cellular cell α, P β) and the center geographical coordinate (O of described specific region α, O β) judge whether described user is positioned at described specific region, if then adopt special billing scheme that described user is chargeed.
In embodiments of the present invention, can be in the following way calculate the geometry parameter of gained, the center geographical coordinate (P of the current place of user cellular cell that step S102 obtains by step S101 α, P β) and the center geographical coordinate (O of described specific region α, O β) judge whether described user is positioned at described specific region: at first, described geometry parameter is converted to center geographical coordinate (O with described geometry parameter, described specific region α, O β) relevant longitude α and latitude β, then, the center geographical coordinate (P of the current place of more described user cellular cell α, P β) with the size of the described longitude α that is converted to and latitude β, judge by comparative result whether described user is positioned at described specific region.For example, if the center geographical coordinate P of the current place of user cellular cell αSize is at the center of described specific region geographical coordinate O αWith the difference of described longitude α and the center geographical coordinate O of described specific region αAnd between the described longitude α sum, and the center geographical coordinate P of the current place of user cellular cell βSize is at the center of described specific region geographical coordinate O βWith the difference of described latitude β and the center geographical coordinate O of described specific region βAnd between the described latitude β sum, judge that then described user is positioned at described specific region.
From the charging method of the specific region that the invention described above embodiment provides as can be known, because system is the geographical position according to the specific region of user's selection, calculate the geometry parameter of the shape correspondence of described specific region, and then by the center geographical coordinate (P of described geometry parameter, the current place of the user cellular cell that obtains α, P β) and the center geographical coordinate (O of specific region α, O β) judge whether described user is positioned at described specific region.Therefore, the method that the embodiment of the invention provides can allow the user learn the geographical position of specific region, own place intuitively, so, can strengthen user's perception and experience; On the other hand, the geographical position of the specific region that system can select according to the user is provided with the size of specific region flexibly, and so, different specific regions can juxtaposition, and then helps the business of promotion and application specific region.
For the charging method of specific region provided by the invention is described more specifically, intuitively, below be that home cell (Home Zone), its shape are that rectangle, its geometry parameter are that length and width are that example describes with the specific region.
In the present embodiment, the length A size of home cell can obtain by calculating Apro v * Cell_ID_Factor, the width C size of home cell can obtain by calculating Cpro v * Cell_ID_Factor, herein, length is to east, width is from reaching north in the south, Apro v is the different different constants that define respectively according to rate with Cpro v, Cell_ID_Factor is that the center of home cell is identical with the center of cellular cell by the calculating ratio of the registration address of described home cell and system's operation situation decision.So, system controls the size of home cell by Apro v, Cpro v and Cell_ID_Factor.
The length A of home cell is converted to center geographical coordinate (O with described length A, described specific region α, O β) relevant longitude α, its concrete conversion formula is:
α = A × 306 × 60 × 60 2 π × r × cos ( O β ) , The width C of home cell is converted to center geographical coordinate (O with described width C, described specific region α, O β) relevant latitude β, its concrete conversion formula is:
β = C × 360 × 60 × 60 2 π × r .
Then, the center geographical coordinate (P of the current place of more described user cellular cell α, P β) with the size of the described longitude α that is converted to and latitude β, judge by comparative result whether described user is positioned at described specific region, that is, if O α-α≤P α≤ O α+ α, and O β-β≤P β≤ O β+ β judges that then described user is positioned at described specific region.
For because to calculate the length A and the width B of gained home cell too small, cause the scope of home cell this special case of scope less than the cellular cell at this home cell place, as shown in Figure 2, then can be directly with the zone of this cellular cell as the special billing scheme of execution.
For the central point of other cellular cell this special case within the cell range of front yard of all staying out, as shown in Figure 3, though the scope of this home cell is greater than the scope of the cellular cell at this home cell place, then still have only the special billing scheme of the interior execution of cellular cell at this home cell place, it is preferential to enjoy rate.
Need to prove, though above-mentioned is to be home cell with the specific region, its shape is rectangle illustrates the specific region that the embodiment of the invention provides for example a charging method, but those skilled in the art are appreciated that, the specific region can also be other specific regions that are different from home cell, for example, City Zone or the like, its shape also is not limited to rectangle, can be circular, oval and square or the like, when its shape was not rectangle, a computing formula that needs modification calculating to be correlated with still can be in the charging method of not making the specific region that the acquisition embodiment of the invention provides under the performing creative labour.
Seeing also accompanying drawing 4, is the charge system structural representation of the specific region that provides of the embodiment of the invention.For convenience of explanation, only show the part relevant with the embodiment of the invention.The charge system of the specific region of accompanying drawing 4 examples comprises geometry parameter computing module 401, geographical coordinate acquisition module 402 and charging processing module 403, wherein:
Geometry parameter computing module 401 is used for the geographical position according to the specific region of user's selection, calculates the geometry parameter of the shape correspondence of described specific region.Need to prove, described specific region is meant the regional extent of enjoying the preferential or special rate of rate, in this regional extent, it is preferential that operator can release various rate, for example, at the rechargeable card of specific region, use this rechargeable card after, can obtain a series of resources such as the amount of money, the duration of call and GPRS flow, but this resource of giving only allows to use in the specific region.Because computation schema can be varied, therefore, the size of specific region can be provided with flexibly.
Unlike the prior art, in the present embodiment, the user selects the ID of cellular cell to select the specific region, but as long as select the geographical position of specific region intuitively, for example, oneself position of user, company position and own school position etc., system just can register the position of this specific region automatically, its geometry parameter computing module 401 is according to the geographical position of the specific region of user's selection, predefined computation schema in the employing system calculates the geometry parameter of the shape correspondence of described specific region.For example, the shape of supposing the specific region is a rectangle, then can calculate this rectangular length and width or the like.
Geographical coordinate acquisition module 402 is used to obtain the center geographical coordinate (P of the current place of user cellular cell α, P β) and the center geographical coordinate (O of described specific region α, O β).In the present embodiment, the center geographical coordinate (P of the current place of user cellular cell α, P β), the center geographical coordinate (O of specific region α, O β) all can use longitude and latitude to represent.
Charging processing module 403 is used for being calculated by described geometry parameter computing module 401 the center geographical coordinate (P of the current place of the described user cellular cell that gained geometry parameters, described geographical coordinate acquisition module 402 obtain α, P β) and the center geographical coordinate (O of described specific region α, O β) judge whether described user is positioned at described specific region, if then adopt special billing scheme that described user is chargeed.
Need to prove, in the execution mode of the charge system of above specific region, the division of each functional module only illustrates, can be as required in the practical application, for example the facility of the realization of the configuration requirement of corresponding hardware or software is considered, and the above-mentioned functions distribution is finished by different functional modules, the internal structure that is about to the charge system of described specific region is divided into different functional modules, to finish all or part of function described above.And, in the practical application, corresponding functional modules in the present embodiment can be to be realized by relevant hardware, also can carry out corresponding software by relevant hardware finishes, for example, aforesaid geometry parameter computing module, can be to have the geographical position of carrying out the aforementioned specific region of selecting according to the user, calculate the hardware of geometry parameter of the shape correspondence of described specific region, geometry parameter calculator for example, thus also can be to carry out general processor or other hardware devices that the corresponding computer program is finished aforementioned functional; Aforesaid for another example geographical coordinate acquisition module can be to have the center geographical coordinate (P that carries out the current place of the aforementioned user of obtaining cellular cell α, P β) and the center geographical coordinate (O of described specific region α, O β) hardware of function, geographical coordinate getter for example, thus also can be to carry out general processor or other hardware devices (each embodiment that this specification provides can use the foregoing description principle) that the corresponding computer program is finished aforementioned functional.
The geographical coordinate acquisition module 402 of accompanying drawing 4 examples can comprise first acquiring unit 501 and second acquisition unit 502, the charge system of the specific region that provides of another embodiment of the present invention as shown in Figure 5, wherein:
First acquiring unit 501 is used for the sign of the cellular cell that reports according to described user's current talking message, by inquiring about the center geographical coordinate (P that first mapping table obtains the current place of user cellular cell α, P β).In the present embodiment, first mapping table has write down the sign of cellular cell and the center geographical coordinate (P of described cellular cell α, P β) mapping relations, therefore, first acquiring unit 501 can be according to the sign of the cellular cell that reports in user's current talking message, by inquiring about the center geographical coordinate (P that first mapping table obtains the current place of user cellular cell α, P β), according to the specific region information of user's registration.
Second acquisition unit 502 is used for the specific region information according to user's registration, by inquiring about the center geographical coordinate (O that second mapping table obtains described specific region α, O β).In the present embodiment, second mapping table has write down the center geographical coordinate (O of specific region information and described specific region α, O β) mapping relations, therefore, second acquisition unit 502 is according to the specific region information of user registration, by inquiring about the center geographical coordinate (O that second mapping table obtains described specific region α, O β).
As an embodiment provided by the invention, in the charge system of the specific region of accompanying drawing 4 or accompanying drawing 5 examples, the specific region can be home cell (Home Zone), it is shaped as rectangle, at this moment, described geometry parameter computing module 401 specifically is used to calculate described rectangular length A and width C, described length A size is Apro v * Cell_ID_Factor, described width C size is Cpro v * Cell_ID_Factor, described Apro v is the different constants that define respectively according to rate with Cpro v, and described Cell_ID_Factor is the calculating ratio by the registration address of described specific region and system's operation situation decision.
The charging processing module 403 of accompanying drawing 4 examples can comprise converting unit 601 and judging unit 602, the charge system of the specific region that provides of another embodiment of the present invention as shown in Figure 6, wherein:
Converting unit 601 is used for described geometry parameter is converted to center geographical coordinate (O with described geometry parameter, described specific region α, O β) relevant longitude α and latitude β;
Judging unit 602 is used for the center geographical coordinate (P of the current place of more described user cellular cell α, P β) with the size of the described longitude α that is converted to and latitude β, judge by comparative result whether described user is positioned at described specific region.
Particularly, in the specific region home cell, it is shaped as rectangle, its geometry parameter is among the embodiment of length A and width C, converting unit 601 is converted to longitude α with described length A:
α = A × 306 × 60 × 60 2 π × r × cos ( O β ) ;
Described width C is converted to latitude β:
β = C × 360 × 60 × 60 2 π × r , In the expression formula of longitude α and latitude β, r is an earth radius.
Center geographical coordinate (the P of the current place of judging unit 602 more described users cellular cell α, P β) with the size of the described longitude α that is converted to and latitude β, judge by comparative result whether described user is positioned at described specific region, particularly, if O α-α≤P α≤ O α+ α, and O β-β≤P β≤ O β+ β, then judging unit 602 judges that described user is positioned at described specific region, system adopts special billing scheme that described user is chargeed.
Need to prove, contents such as the information interaction between each module/unit of said apparatus, implementation, since with the inventive method embodiment based on same design, its technique effect that brings is identical with the inventive method embodiment, particular content can repeat no more referring to the narration among the inventive method embodiment herein.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of the foregoing description is to instruct relevant hardware to finish by program, this program can be stored in the computer-readable recording medium, storage medium can comprise: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), disk or CD etc.
More than the charging method and the system of a kind of specific region that the embodiment of the invention is provided be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (10)

1. the charging method of a specific region is characterized in that, described method comprises:
The geometry parameter of the shape correspondence of described specific region is calculated in the geographical position of the specific region of selecting according to the user;
Obtain the center geographical coordinate (P of the current place of user cellular cell α, P β) and the center geographical coordinate (O of described specific region α, O β);
Center geographical coordinate (P by described geometry parameter, the current place of described user cellular cell α, P β) and the center geographical coordinate (O of described specific region α, O β) judge whether described user is positioned at described specific region, if then adopt special billing scheme that described user is chargeed.
2. the method for claim 1, it is characterized in that, the center geographical coordinate of the current place of the described user of obtaining cellular cell is: according to the sign of the cellular cell that reports in described user's current talking message, by inquiring about the center geographical coordinate (P that first mapping table obtains the current place of user cellular cell α, P β);
The described center geographical coordinate that obtains described specific region is: according to the specific region information of user's registration, by inquiring about the center geographical coordinate (O that second mapping table obtains described specific region α, O β).
3. the method for claim 1 is characterized in that, described center geographical coordinate (P by described geometry parameter, the current place of described user cellular cell α, P β) and the center geographical coordinate (O of described specific region α, O β) judge whether described user is positioned at described specific region and comprises:
Described geometry parameter is converted to center geographical coordinate (O with described geometry parameter, described specific region α, O β) relevant longitude α and latitude β;
Center geographical coordinate (the P of the current place of more described user cellular cell α, P β) with the size of the described longitude α that is converted to and latitude β, judge by comparative result whether described user is positioned at described specific region.
4. method as claimed in claim 3 is characterized in that, described specific region be shaped as rectangle;
The geometry parameter of the shape correspondence of the described specific region of described calculating is: calculate described rectangular length A and width C;
Described length A size is Apro v * Cell_ID_Factor, described width C size is Cpro v * Cell_ID_Factor, described Apro v is the different constants that define respectively according to rate with Cpro v, and described Cell_ID_Factor is the calculating ratio by the registration address of described specific region and system's operation situation decision.
5. method as claimed in claim 4 is characterized in that, described described geometry parameter is converted to center geographical coordinate (O with described geometry parameter, described specific region α, O β) relevant longitude α and latitude β be specially:
Described longitude is α = A × 306 × 60 × 60 2 π × r × cos ( O β ) , Described latitude is β = C × 360 × 60 × 60 2 π × r , Described r is an earth radius;
Center geographical coordinate (the P of the current place of described user cellular cell α, P β) with the size of the described longitude α that is converted to and latitude β, judge by comparative result whether described user is positioned at described specific region and is:
If O α-α≤P α≤ O α+ α, and O β-β≤P β≤ O β+ β judges that then described user is positioned at described specific region.
6. the charge system of a specific region is characterized in that, described system comprises:
The geometry parameter computing module is used for the geographical position according to the specific region of user's selection, calculates the geometry parameter of the shape correspondence of described specific region;
The geographical coordinate acquisition module is used to obtain the center geographical coordinate (P of the current place of user cellular cell α, P β) and the center geographical coordinate (O of described specific region α, O β);
The charging processing module is used for being calculated by described geometry parameter computing module the center geographical coordinate (P of the current place of the described user cellular cell that gained geometry parameter, described geographical coordinate acquisition module obtain α, P β) and the center geographical coordinate (O of described specific region α, O β) judge whether described user is positioned at described specific region, if then adopt special billing scheme that described user is chargeed.
7. system as claimed in claim 6 is characterized in that the geographical coordinate acquisition module comprises first acquiring unit and second acquisition unit;
Described first acquiring unit is used for the sign of the cellular cell that reports according to described user's current talking message, by inquiring about the center geographical coordinate (P that first mapping table obtains the current place of user cellular cell α, P β);
Described second acquisition unit is used for the specific region information according to user's registration, by inquiring about the center geographical coordinate (O that second mapping table obtains described specific region α, O β).
8. the system as claimed in claim 1 is characterized in that, described charging processing module comprises:
Converting unit is used for described geometry parameter is converted to center geographical coordinate (O with described geometry parameter, described specific region α, O β) relevant longitude α and latitude β;
Judging unit is used for the center geographical coordinate (P of the current place of more described user cellular cell α, P β) with the size of the described longitude α that is converted to and latitude β, judge by comparative result whether described user is positioned at described specific region.
9. system as claimed in claim 8 is characterized in that, described specific region be shaped as rectangle;
Described geometry parameter computing module specifically is used to calculate described rectangular length A and width C, described length A size is Apro v * Cell_ID_Factor, described width C size is Cpro v * Cell_ID_Factor, described Apro v is the different constants that define respectively according to rate with Cpro v, and described Cell_ID_Factor is the calculating ratio by the registration address of described specific region and system's operation situation decision.
10. system as claimed in claim 9 is characterized in that, described converting unit is converted to center geographical coordinate (O with described geometry parameter and described specific region with described geometry parameter α, O β) relevant longitude α and latitude β be specially:
Described longitude is α = A × 306 × 60 × 60 2 π × r × cos ( O β ) , Described latitude is β = C × 360 × 60 × 60 2 π × r , Described r is an earth radius;
Center geographical coordinate (the P of the current place of the more described user of described judging unit cellular cell α, P β) with the size of the described longitude α that is converted to and latitude β, judge by comparative result whether described user is positioned at described specific region and is specially:
If O α-α≤P α≤ O α+ α, and O β-β≤P β≤ O β+ β judges that then described user is positioned at described specific region.
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Application publication date: 20111109