CN102480769A - Cell switching method and base station controller - Google Patents
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- CN102480769A CN102480769A CN2010105576669A CN201010557666A CN102480769A CN 102480769 A CN102480769 A CN 102480769A CN 2010105576669 A CN2010105576669 A CN 2010105576669A CN 201010557666 A CN201010557666 A CN 201010557666A CN 102480769 A CN102480769 A CN 102480769A
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- 238000005259 measurement Methods 0.000 claims description 17
- 230000008447 perception Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 5
- 230000010365 information processing Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000005465 channeling Effects 0.000 description 2
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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
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00835—Determination of neighbour cell lists
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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
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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Abstract
The invention discloses a cell switching method and a base station controller. The method comprises the following steps: the base station controller determines a cell to be switched of a mobile station according to a measuring report from the mobile station; the base station controller acquires the information of cells related to the cell to be switched; the base station controller initiates cell switching according to the information of the related cells. In the invention, the switching judgment rationality and accuracy can be promoted; the call-dropping times during switching are reduced and the perception of users is promoted.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of cell switching method and base station controller.
Background technology
GSM makes the user can in moving process, obtain normal network service, and handoff technique is to guarantee that the user obtains a key technology of high network quality service in moving process.
Handoff technique in the correlation technique can be realized like this, travelling carriage (Mobile Station abbreviates MS as) monitoring system message in communication process; Obtain the BCCH that wherein carries and distribute (BCCH Allocation; Abbreviate BA as) table information, then, MS utilizes idle frame to seek the FREQUENCY CONTROL channel of adjacent sub-district (Frequency Control Channel; Abbreviate FCCH as) carry out synchronizing channel (Synchronous Channel; Abbreviate SCH as) decoding, in conjunction with the mode reporting base station controller (Base Station Controller abbreviate BSC) of the adjacent area level of measuring through measurement report.BSC selects optimum sub-district and notifies MS to switch according to strong and weak ordering of reporting neighboring cell level.
At present, channeling is more and more tightr, and the regional extent of each channeling bunch is more and more littler, and the situation that neighboring interval is configured to co-frequency cell happens occasionally.
Fig. 1 is the sketch map of the relation of Serving cell, co-frequency neighbor cell and associated cell according to correlation technique, and is as shown in Figure 1, and sub-district A, B, A ', B ' are the adjacent sub-district of Serving cell, and A and A ' are with frequently.In the main coverage of A sub-district, the signal level of B sub-district is taken second place, and the associated cell that B is the A sub-district (referring to add for the part adjacent area sub-district of association identification information) is set, and the associated cell of B ' for A ' in like manner is set.MS is the process that moves along the direction of arrow from Serving cell, and the A sub-district becomes main coverage cell.
Under current changing method pattern, if there is co-frequency cell, base station controller possibly judged MS by accident and cut non-prime coverage area territory, thereby cause conversation loss, influence user experience.
Summary of the invention
The problem that can not handle it with situation frequently to neighboring interval to the cell switching method in the correlation technique and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of cell switching method and base station controller, to address the above problem.
To achieve these goals, according to an aspect of the present invention, a kind of cell switching method is provided.
Cell switching method according to the present invention comprises: base station controller is confirmed the to be switched sub-district of travelling carriage according to the measurement report from travelling carriage; Base station controller obtains the information of the associated cell of to be switched sub-district; Base station controller switches the Mobile Origination sub-district according to the information of associated cell.
Further; Base station controller is according to the measurement report from travelling carriage; The to be switched sub-district of confirming travelling carriage comprises: base station controller is according to measurement report, according to the signal quality of adjacent cells order from high to low of travelling carriage, the priority of adjacent area sorted; Base station controller confirms that the highest adjacent area of the priority in the ranking results is as to be switched sub-district.
Further, the to be switched sub-district of the information of associated cell indication is not provided with associated cell; Base station controller is according to the information of associated cell, and the switching of Mobile Origination sub-district is comprised: base station controller is to the switching of Mobile Origination to be switched sub-district.
Further; The to be switched sub-district of information indication of associated cell has been provided with associated cell; The associated cell that the information indication of associated cell is provided with is in the ranking results, and the associated cell of the co-frequency cell of the sub-district that the information indication of associated cell is to be switched is not in the ranking results; Base station controller is according to the information of associated cell, and the switching of Mobile Origination sub-district is comprised: base station controller is to the switching of Mobile Origination to be switched sub-district.
Further; The to be switched sub-district of information indication of associated cell has been provided with associated cell; The associated cell that the information indication of associated cell is provided with is in the ranking results; The associated cell of the co-frequency cell of the sub-district that the indication of the information of associated cell is to be switched is in the ranking results, and the priority of the associated cell that the information indication of associated cell is provided with is higher than the priority of associated cell of the co-frequency cell of to be switched sub-district; Base station controller is according to the information of associated cell, and the switching of Mobile Origination sub-district is comprised: base station controller is to the switching of Mobile Origination to be switched sub-district.
Further; The to be switched sub-district of the information of associated cell indication the arbitrary condition to the condition three that do not satisfy condition; Wherein, condition one is not provided with associated cell for to be switched sub-district, and condition two has been provided with associated cell for to be switched sub-district; The associated cell that the information indication of associated cell is provided with is in the ranking results; And the associated cell of the co-frequency cell of the sub-district that the indication of the information of associated cell is to be switched is not in the ranking results, and condition three has been provided with associated cell for to be switched sub-district; The associated cell that the information indication of associated cell is provided with is in the ranking results; The associated cell of the co-frequency cell of the sub-district that the indication of the information of associated cell is to be switched is in the ranking results, and the priority of the associated cell that the information indication of associated cell is provided with is higher than the priority of associated cell of the co-frequency cell of to be switched sub-district; Base station controller is according to the information of associated cell; The switching of Mobile Origination sub-district is comprised: base station controller confirms that the inferior high adjacent area of the priority in the ranking results is as to be switched sub-district; Base station controller obtains the information of the associated cell of to be switched sub-district; Base station controller switches the Mobile Origination sub-district according to the information of associated cell.
To achieve these goals, according to another aspect of the present invention, a kind of base station controller is provided.
Base station controller according to the present invention comprises: determination module is used for confirming the to be switched sub-district of travelling carriage according to the measurement report from travelling carriage; Acquisition module is used to obtain the information of the associated cell of to be switched sub-district; Handover module is used for the information according to associated cell, and the Mobile Origination sub-district is switched.
Further, determination module comprises: the ordering submodule, be used for according to measurement report, and according to the signal quality of adjacent cells order from high to low of travelling carriage, the priority of adjacent area is sorted; First confirms submodule, is used for confirming that the highest adjacent area of the priority of ranking results is as to be switched sub-district.
Further, handover module comprises: first switching submodule is used for the switching of Mobile Origination to be switched sub-district.
Further, handover module comprises: second confirms submodule, and the inferior high adjacent area of priority that is used for confirming ranking results is as to be switched sub-district; Obtain submodule, be used to obtain the information of the associated cell of to be switched sub-district; Second switching submodule is used for the information according to associated cell, and the Mobile Origination sub-district is switched.
The present invention is through the information processing of base station controller to the associated cell of to be switched sub-district; Solved the problem that cell switching method in the correlation technique can not be handled it with situation frequently to neighboring interval; Can promote switch decision reasonability and accuracy; Reduce and switch number of dropped calls, promote user's perceptibility.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the sketch map of the relation of Serving cell, co-frequency neighbor cell and associated cell according to correlation technique;
Fig. 2 is the flow chart according to the cell switching method of the embodiment of the invention;
Fig. 3 is the flow chart of cell switching method according to the preferred embodiment of the invention;
Fig. 4 is the structured flowchart according to the base station controller of the embodiment of the invention;
Fig. 5 is the structured flowchart of base station controller according to the preferred embodiment of the invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
The embodiment of the invention provides a kind of cell switching method.Fig. 2 is the flow chart according to the cell switching method of the embodiment of the invention, comprises that following step S202 is to step S206.
Step S202, base station controller confirm the to be switched sub-district of travelling carriage according to the measurement report from travelling carriage.
Step S204, base station controller obtain the information of the associated cell of to be switched sub-district.
Step S206, base station controller switch the Mobile Origination sub-district according to the information of associated cell.
Cell switching method in the correlation technique can not be handled it with situation frequently to neighboring interval.In this preferred embodiment, considered the relevance of adjacent area,, can promote switch decision reasonability and accuracy, reduced and switch number of dropped calls, promoted user's perceptibility through the information processing of base station controller to the associated cell of to be switched sub-district.
Preferably, can increase adjacent cell association property maintenance module in the radio operation maintenance centre in (Operation and Maintenance Center-Radio abbreviates OMCR as).This module is safeguarded adjacent cell association cell information according to the network planning, thereby for above-mentioned base station controller the information of associated cell is provided.Adjacent cell association cell information is set according to actual scene in the abutting subdistrict page in radio operation maintenance centre, and optimum embodiment advises using 3 associated cell settings.
Preferably; Base station controller is according to the measurement report from travelling carriage; The to be switched sub-district of confirming travelling carriage comprises: base station controller is according to measurement report, according to the signal quality of adjacent cells order from high to low of travelling carriage, the priority of adjacent area sorted; Base station controller confirms that the highest adjacent area of the priority in the ranking results is as to be switched sub-district.
Preferably, the to be switched sub-district of the information of associated cell indication is not provided with associated cell; Base station controller is according to the information of associated cell, and the switching of Mobile Origination sub-district is comprised: base station controller is to the switching of Mobile Origination to be switched sub-district.
Preferably; The to be switched sub-district of information indication of associated cell has been provided with associated cell; The associated cell that the information indication of associated cell is provided with is in the ranking results, and the associated cell of the co-frequency cell of the sub-district that the information indication of associated cell is to be switched is not in the ranking results; Base station controller is according to the information of associated cell, and the switching of Mobile Origination sub-district is comprised: base station controller is to the switching of Mobile Origination to be switched sub-district.
Preferably; The to be switched sub-district of information indication of associated cell has been provided with associated cell; The associated cell that the information indication of associated cell is provided with is in the ranking results; The associated cell of the co-frequency cell of the sub-district that the indication of the information of associated cell is to be switched is in the ranking results, and the priority of the associated cell that the information indication of associated cell is provided with is higher than the priority of associated cell of the co-frequency cell of to be switched sub-district; Base station controller is according to the information of associated cell, and the switching of Mobile Origination sub-district is comprised: base station controller is to the switching of Mobile Origination to be switched sub-district.
Preferably; The to be switched sub-district of the information of associated cell indication the arbitrary condition to the condition three that do not satisfy condition; Wherein, condition one is not provided with associated cell for to be switched sub-district, and condition two has been provided with associated cell for to be switched sub-district; The associated cell that the information indication of associated cell is provided with is in the ranking results; And the associated cell of the co-frequency cell of the sub-district that the indication of the information of associated cell is to be switched is not in the ranking results, and condition three has been provided with associated cell for to be switched sub-district; The associated cell that the information indication of associated cell is provided with is in the ranking results; The associated cell of the co-frequency cell of the sub-district that the indication of the information of associated cell is to be switched is in the ranking results, and the priority of the associated cell that the information indication of associated cell is provided with is higher than the priority of associated cell of the co-frequency cell of to be switched sub-district; Base station controller is according to the information of associated cell; The switching of Mobile Origination sub-district is comprised: base station controller confirms that the inferior high adjacent area of the priority in the ranking results is as to be switched sub-district; Base station controller obtains the information of the associated cell of to be switched sub-district; Base station controller switches the Mobile Origination sub-district according to the information of associated cell.
To combine instance that the implementation procedure of the embodiment of the invention is described in detail below.
Fig. 3 is the flow chart of cell switching method according to the preferred embodiment of the invention, and is as shown in Figure 3, comprises that following step S302 is to step S310.
Step S302, base station controller sorts to switching target small area according to the measurement report that mobile phone reports.
Step S304, base station controller judges through Query Database whether next candidate cell is provided with associated cell.If then carry out step S306, otherwise carry out step S310.
Step S306, base station controller obtains the associated cell of next candidate cell and the associated cell information of co-frequency cell thereof through Query Database.
Step S308, base station controller judge following judging whether to very:
Associated cell in the ordering sub-district and with the associated cell of its co-frequency cell in the ordering sub-district, or the associated cell of co-frequency cell in the ordering sub-district and ordering forward than its associated cell position.
If then carry out step S310, otherwise carry out step S304.
Step S310, base station controller issues switching command to travelling carriage, requires travelling carriage to switch to this sub-district.
The above is merely embodiments of the invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Need to prove; Can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions; And; Though logical order has been shown in flow chart, in some cases, can have carried out step shown or that describe with the order that is different from here.
The embodiment of the invention provides a kind of base station controller, and this base station controller can be used to realize above-mentioned cell switching method.Fig. 4 is the structured flowchart according to the base station controller of the embodiment of the invention, comprises determination module 42, acquisition module 44 and handover module 46.Be described in greater detail below.
Determination module 42 is used for confirming the to be switched sub-district of travelling carriage according to the measurement report from travelling carriage; Acquisition module 44 is connected to determination module 42, is used to obtain the information of the associated cell of the to be switched sub-district that determination module 42 confirms; Handover module 46 is connected to acquisition module 44, and the information of the associated cell that is used for obtaining according to acquisition module 44 is switched the Mobile Origination sub-district.
Cell switching method in the correlation technique can not be handled it with situation frequently to neighboring interval.In this preferred embodiment, considered the relevance of adjacent area,, can promote switch decision reasonability and accuracy, reduced and switch number of dropped calls, promoted user's perceptibility through the information processing of base station controller to the associated cell of to be switched sub-district.
Preferably, can increase switch decision module at base station controller based on the adjacent area relevance, the synchronous adjacent cell association cell information of this module, and based on this information judgement switching target small area.
Preferably, determination module 42 comprises ordering submodule 422 and first definite submodule 424.Be described in greater detail below.
Ordering submodule 422 is used for according to measurement report, according to the signal quality of adjacent cells order from high to low of travelling carriage, the priority of adjacent area is sorted; First confirms submodule 424, is connected to ordering submodule 422, is used for confirming that the highest adjacent area of the priority of ranking results of ordering submodule 422 is as to be switched sub-district.
Preferably, handover module 46 comprises first switching submodule 462, is used for the switching of Mobile Origination to be switched sub-district.
Preferably, handover module 46 comprises that second confirms submodule 464, obtains the submodule 466 and second switching submodule 468.
Second confirms submodule 464, and the inferior high adjacent area of priority that is used for confirming ranking results is as to be switched sub-district; Obtain submodule 466, be connected to second and confirm submodule 464, be used to obtain second confirm the associated cell of the to be switched sub-district that submodule 464 is confirmed information; Second switching submodule 468 is connected to and obtains submodule 466, is used for according to the information of obtaining the associated cell that submodule 466 obtains the Mobile Origination sub-district being switched.
To combine instance that the implementation procedure of the embodiment of the invention is described in detail below.
Fig. 5 is the structured flowchart of base station controller according to the preferred embodiment of the invention, and is as shown in Figure 5, and the radio operation maintenance centre increases adjacent area relevance maintenance module, and this module is safeguarded adjacent cell association cell information according to the network planning.Base station controller increases the switch decision module based on the adjacent area relevance, the synchronous adjacent cell association cell information of this module, and based on this information judgement switching target small area.
Need to prove that the base station controller of describing among the device embodiment is corresponding to above-mentioned method embodiment, its concrete implementation procedure had been carried out detailed description in method embodiment, repeat no more at this.
In sum, according to the abovementioned embodiments of the present invention, a kind of cell switching method and base station controller are provided.Through the information processing of base station controller to the associated cell of to be switched sub-district; Solved the problem that cell switching method in the correlation technique can not be handled it with situation frequently to neighboring interval; Can promote switch decision reasonability and accuracy; Reduce and switch number of dropped calls, promote user's perceptibility.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize by calculation element.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a cell switching method is characterized in that, comprising:
Base station controller is confirmed the to be switched sub-district of said travelling carriage according to the measurement report from travelling carriage;
Said base station controller obtains the information of the associated cell of said to be switched sub-district;
Said base station controller switches said Mobile Origination sub-district according to the information of said associated cell.
2. method according to claim 1 is characterized in that, said base station controller confirms that according to the measurement report from said travelling carriage the said to be switched sub-district of said travelling carriage comprises:
Said base station controller is according to said measurement report, according to the signal quality of adjacent cells order from high to low of said travelling carriage, the priority of said adjacent area sorted;
Said base station controller confirms that the highest adjacent area of the priority in the said ranking results is as said to be switched sub-district.
3. method according to claim 2 is characterized in that,
The information of said associated cell indicates said to be switched sub-district that associated cell is not set;
Said base station controller is according to the information of said associated cell, said Mobile Origination sub-district switched comprise: said base station controller is to the switching of said Mobile Origination to said to be switched sub-district.
4. method according to claim 2 is characterized in that,
The information of said associated cell indicates said to be switched sub-district that associated cell has been set; The information of said associated cell indicates the associated cell of said setting to be in the said ranking results; And the information of said associated cell indicates the associated cell of the co-frequency cell of said to be switched sub-district not to be in the said ranking results;
Said base station controller is according to the information of said associated cell, said Mobile Origination sub-district switched comprise: said base station controller is to the switching of said Mobile Origination to said to be switched sub-district.
5. method according to claim 2 is characterized in that,
The information of said associated cell indicates said to be switched sub-district that associated cell has been set; The information of said associated cell indicates the associated cell of said setting to be in the said ranking results; The information of said associated cell indicates the associated cell of the co-frequency cell of said to be switched sub-district to be in the said ranking results; And the information of said associated cell indicates the priority of the associated cell of said setting to be higher than the priority of associated cell of the co-frequency cell of said to be switched sub-district;
Said base station controller is according to the information of said associated cell, said Mobile Origination sub-district switched comprise: said base station controller is to the switching of said Mobile Origination to said to be switched sub-district.
6. method according to claim 2 is characterized in that,
The information of said associated cell is indicated said to be switched sub-district the arbitrary condition to the condition three that do not satisfy condition,
Wherein, said condition one is not provided with associated cell for said to be switched sub-district,
Said condition two has been provided with associated cell for said to be switched sub-district; The information of said associated cell indicates the associated cell of said setting to be in the said ranking results; And; The information of said associated cell indicates the associated cell of the co-frequency cell of said to be switched sub-district not to be in the said ranking results
Said condition three has been provided with associated cell for said to be switched sub-district; The information of said associated cell indicates the associated cell of said setting to be in the said ranking results; The information of said associated cell indicates the associated cell of the co-frequency cell of said to be switched sub-district to be in the said ranking results; And the information of said associated cell indicates the priority of the associated cell of said setting to be higher than the priority of associated cell of the co-frequency cell of said to be switched sub-district;
Said base station controller comprises the switching of said Mobile Origination sub-district according to the information of said associated cell:
Said base station controller is confirmed the inferior high adjacent area of the priority in the said ranking results as said to be switched sub-district,
Said base station controller obtains the information of the associated cell of said to be switched sub-district,
Said base station controller switches said Mobile Origination sub-district according to the information of said associated cell.
7. a base station controller is characterized in that, comprising:
Determination module is used for confirming the to be switched sub-district of said travelling carriage according to the measurement report from travelling carriage;
Acquisition module is used to obtain the information of the associated cell of said to be switched sub-district;
Handover module is used for the information according to said associated cell, and said Mobile Origination sub-district is switched.
8. base station controller according to claim 7 is characterized in that, said determination module comprises:
The ordering submodule is used for according to said measurement report, according to the signal quality of adjacent cells order from high to low of said travelling carriage, the priority of said adjacent area is sorted;
First confirms submodule, is used for confirming that the highest adjacent area of the priority of said ranking results is as said to be switched sub-district.
9. base station controller according to claim 8 is characterized in that, said handover module comprises:
First switching submodule is used for the switching of said Mobile Origination to said to be switched sub-district.
10. base station controller according to claim 8 is characterized in that, said handover module comprises:
Second confirms submodule, and the inferior high adjacent area of priority that is used for confirming said ranking results is as said to be switched sub-district;
Obtain submodule, be used to obtain the information of the associated cell of said to be switched sub-district;
Second switching submodule is used for the information according to said associated cell, and said Mobile Origination sub-district is switched.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105576669A CN102480769A (en) | 2010-11-24 | 2010-11-24 | Cell switching method and base station controller |
| PCT/CN2011/076232 WO2012068876A1 (en) | 2010-11-24 | 2011-06-23 | A method and base station controller for cell handover |
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| CN2010105576669A CN102480769A (en) | 2010-11-24 | 2010-11-24 | Cell switching method and base station controller |
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| CN106454970A (en) * | 2016-12-06 | 2017-02-22 | 北京小米移动软件有限公司 | Cell switching control method and device |
| CN106454970B (en) * | 2016-12-06 | 2020-02-07 | 北京小米移动软件有限公司 | Cell switching control method and device |
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| WO2012068876A1 (en) | 2012-05-31 |
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