CN101094482B - Method and system for measuring parameters in channels of neighboring areas - Google Patents
Method and system for measuring parameters in channels of neighboring areas Download PDFInfo
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Abstract
The method comprises: a) according to the neighboring cell information generated by network side, determining the measurement type for measuring the parameter of each neighboring cell channel; b) according to the determined measurement type, generating the measuring control information, and sending down the information to the user end; according to the measurement control information, said user end reports the channel measuring result to the network side. The invention also provides a system for measuring the neighboring cell channel parameter.
Description
Technical field
The present invention relates to the communication technology, refer in particular to a kind of method and system thereof that is used for evolution planar network architecture measuring parameters in channels of neighboring areas.
Background technology
Along with making rapid progress of the communication technology, HSDPA (High Speed Downlink Packet Access, the high speed downlink packet access), Enhanced Uplink enhancement techniques such as (strengthening up) is introduced in the 3GPP wireless access technology, industry is considered the Long Term Evolution LTE technology of 3GPP wireless access technology, and the LTE purpose provides and a kind ofly can reduce time delay, improves user side data rate, improved power system capacity and cover network cheaply.
The LTE network only uses PS (Packet Switched, grouping inserts) the territory business, bearer network all is IP (Internet Protocol, procotol) carrying, in the existing LTE framework, its physical layer has adopted OFDM (OFDM) technology, the transmission bandwidth of its sub-district and the bandwidth ability of UE are not fixed, and generally speaking, the maximum transmission bandwidth of sub-district is 20M, the minimum bandwidth capabilities of UE is 10M, and its possible use scene as shown in Figure 1.
As shown in Figure 1, sub-district A (CELL A) is 20M with the transmission bandwidth of sub-district B (CELL B), sub-district C (CELL C) is 10M with the transmission bandwidth of sub-district D (CELL D) and sub-district E (CELL E), and the bandwidth ability that is in the UE in the different districts has the branch of 20M and 10M respectively, and the regional a among the figure is the center carrier frequence zone of each sub-district.
As can be seen from the figure, in present LTE framework, if UE measures at the channel parameter of certain sub-district, described channel parameter may comprise channel quality, channel power etc., UE belongs to common frequency measurement or different-frequency measure to the type of measured channel parameter, not only whether identical relevant, simultaneously relevant with the ability of UE with the center carrier frequence of UE current service cell and Target cell.
In existing UMTS system, the carrier frequency frequency of co-frequency cell is identical, and the carrier frequency frequency of alien-frequency district is different, and different sub-districts is to distinguish by different code words.Therefore for UE, if the carrier frequency frequency of the Target cell that will measure and current Serving cell is identical, then measuring type is common frequency measurement; Otherwise, then be different-frequency measure.Therefore system is directly measured accordingly by the measuring control information indication UE that issues the different measuring type.
But owing to adopted different physical-layer techniques in the LTE framework with existing UMTS system, the adjacent area of same frequency layer may not be exactly a common frequency measurement among the LTE, so only determine that according to the classification of same frequency/different frequency/different system the metering system of measuring type makes user side can't obtain suitable measurement result in evolvement network.
Summary of the invention
The invention provides a kind of method and system thereof of measuring parameters in channels of neighboring areas, can not adapt to the problem of development communication technologies in order to the method that solves the measured channel parameter that exists in the prior art.
The inventive method may further comprise the steps:
Network side generates neighboring BS information, and is handed down to each user side;
Described network side receives the measurement type that each measuring parameters in channels of neighboring areas that described user side reports adopts, and the measurement type that described each measuring parameters in channels of neighboring areas adopts is to be determined according to the neighboring BS information that receives by described user side;
Network side generates measuring control information according to determined measurement type, and this information is handed down to user side; Indicate described user side to measure according to the measuring control information that receives;
Wherein, comprise before the described step B:
Network side judges whether to accept the measurement type that described user side reports according to the system strategy of setting, if accept this measurement type, execution in step B;
Otherwise network side sends the information of this measurement type of refusal or does not reply described user side.
Preferably, described neighboring BS information is that network side generates according to system strategy, and described neighboring BS information sends to the specific messages that the user side that is in data transmission state issues by system message or the network side towards the sub-district that network side issues.
Preferably, in steps A, when described user side carried out transfer of data, described user side should be measured type and report before the network side:
When having distinguished same frequency layer and different frequency layer cell information as described in the neighboring BS information that user side received, whether the neighboring BS information that described user side comparison read system message obtains is identical with the neighboring BS information that data transmission state receives down, if it is different, user side determines whether to carry the neighboring BS information that receives under the data transmission state according to the system strategy of setting when reporting definite measurement type;
When not distinguishing same frequency layer and different frequency layer cell information in the neighboring BS information that the user side data transmission state is received down as described, user side will carry the neighboring BS information that is received under the described user side data transmission state when reporting definite measurement type;
When being different system cell information as the neighboring BS information that user side received, described user side only need report definite measurement type.
When preferably, wherein said user side carries out transfer of data:
When neighboring BS information was the adjacent area of different system as described, user side or network side determined to adopt the isosystem measurement type;
The branch time-like has been made in adjacent area to the homologous ray in the neighboring BS information of network side generation, user side or network side are determined in the adjacent area of same frequency or the common frequency measurement type is adopted in the adjacent area of same frequency layer, and the different-frequency measure type is adopted in the adjacent area of alien frequencies rate or the adjacent area of different frequency layer; Or
User side or network side are according to the definite measurement type that is adopted of described user's user capability.
Preferably, described user side specifically comprises according to the definite measurement type that adopts of the neighboring BS information that receives:
The neighboring BS information that generates when network side is the adjacent area of homologous ray, and when the neighboring BS information that network issues is unfiled, when described user side determined that according to user capability the center carrier frequence of this adjacent area drops within the reception bandwidth ability of described user side, the common frequency measurement type was adopted in described user side or network side decision;
Otherwise, adopt the different-frequency measure type.
Preferably, the information that reports of the information that issues of network side or user side adopts rrc layer signaling or MAC layer signaling.
Preferably, in described step B, described measuring control information comprise the common frequency measurement control information or/and the different-frequency measure control information or/and the isosystem measurement control information.
A kind of measuring parameters in channels of neighboring areas system has network equipment and a plurality of user side, comprises the measuring parameters in channels unit of measuring the type determining unit and being located at user side:
Measure the type determining unit, be used for neighboring BS information, or the user capability of the neighboring BS information of network equipment generation and user side is determined the measurement type that user side adopts nearby region measurement according to the network equipment generation;
The measuring parameters in channels unit is used to adopt and measures the definite user side of type determining unit institute the measurement type of nearby region measurement employing is carried out measuring parameters in channels;
Described network equipment comprises at least:
The neighboring BS information generation unit is used for generating neighboring BS information to measuring parameters in channels of neighboring areas according to system strategy or user side request;
The measuring control information generation unit, the neighboring BS information and the described measurement type determining unit that are used for generating according to described neighboring BS information generation unit judge that described user side generates measuring control information to the measurement type that nearby region measurement adopts;
Information issues the unit, is used to issue the message that network side generates; Information receiving unit is used to receive the information that user side sends.
Preferably, described measurement type determining unit is located at network equipment or user side.
Preferably, described user side comprises:
Issue information receiving unit, be used to accept the information that network side issues;
Information reports the unit, is used to carry out the order of network side, and execution result is reported described network equipment.
Beneficial effect of the present invention is as follows:
Technical scheme of the present invention has been utilized the characteristics of the LTE network architecture, when user side carries out the measuring parameters in channels of neighboring areas of sub-district when switching to use channel or UE, network side generates neighboring BS information according to system strategy, and consider again that according to the type of this neighboring BS information user capability selects suitable measurement type by network side or user side, and then accurately the channels of neighboring areas parameter is measured, and method of the present invention has adapted to development of Communication Technique.
Description of drawings
Fig. 1 is cell transmission bandwidths and a user side bandwidth schematic diagram in the prior art;
Fig. 2 is a method flow diagram of the present invention;
Fig. 3 is for measuring the structured flowchart that the type determining unit is arranged in network equipment in the system of the present invention;
Fig. 4 is for measuring the structured flowchart that the type determining unit is positioned at user side in the system of the present invention.
Embodiment
The present invention proposes a kind of method of measuring parameters in channels of neighboring areas, the principle of this method is, generate neighboring BS information by network side according to system strategy, at UE in data transmission procedure, type by network side or UE decision measurement, wherein this dual mode complements each other, and the method that type is measured in UE decision is applicable to the measurement of mobility status UE, and whether UE is by initiating to initiate request at other cell measurement to network to the assessment decision of the quality of current service band; And network side can be judged at the measurement of adjacent area and sending measuring control indication according to the system strategy startup, carries out the measurement of the channel parameter of neighbor cell by UE, and the measurement result of channel parameter is reported network side.
With reference to shown in Figure 2, be method flow diagram of the present invention, method of the present invention comprises following concrete steps:
201, the neighboring BS information that generates according to network side is determined the measurement type that user side adopts each measuring parameters in channels of neighboring areas;
In this step 201, the neighboring BS information that network side generates be meant network side to user side the adjacent described type in sub-district, general neighboring BS information can have two classes, a class is the adjacent area of (intra-RAT) in the homologous ray, another kind of is different system adjacent area (inter-RAT); Wherein said neighboring BS information can adopt tabular form to represent, tabulation can be a various ways, adjacent area at homologous ray, in tabulation, can not classify, promptly do not distinguish the adjacent area of same frequency or the adjacent area of alien frequencies rate, perhaps can classify, also can adopt traditional mode to classify with the Neighboring Cell List of same frequency layer and this mode of Neighboring Cell List of different frequency layer; And can be used as an independent tabulation, the different system adjacent area in the neighboring BS information that network side generated provides.
In this step 201, can determine by network equipment (as base station or IAD) or by user side the measurement type that each measuring parameters in channels of neighboring areas adopted, and when determining the measurement type that user side adopts, the consideration user capability is made type selecting when considering neighboring BS information, respectively these two kinds of definite modes is made further instructions below:
When one, being determined by network side as the measurement type of adjacent area, network side generates described user's neighboring BS information according to the system strategy of setting, and determines the measurement type of channels of neighboring areas parameter, and wherein said system strategy can refer to the RRM strategy or from O﹠amp; The periodic indication that the indication of M module or network side are set etc.;
Network side generates neighboring BS information, carries out different disposal according to the different mode classifications of the Neighboring Cell List in the neighboring BS information, determines that user side measures the measurement type of channels of neighboring areas parameter:
If in the neighboring BS information that network side generates, classify in the Neighboring Cell List to homologous ray, then network side can be determined to adopt common frequency measurement in the adjacent area of same frequency, different-frequency measure is adopted in adjacent area in the alien frequencies rate, and then network side has just been determined the measurement type that user side can adopt according to neighboring BS information.In such cases, network side also can not considered the classification of network side to the homologous ray Neighboring Cell List, and determine according to neighboring BS information and user capability can whether drop on the measurement type of determining described adjacent area within the reception bandwidth ability of UE such as network side according to the center carrier frequence of adjacent area and adopt common frequency measurement or different-frequency measure;
And if in the neighboring BS information that network side generates, have different system Neighboring Cell List, network side just can determine to exist isosystem measurement, and definite isosystem measurement that is measured as to described adjacent area.
If the homologous ray Neighboring Cell List in the Neighboring Cell List of network side is not classified, this moment, network side need determine to measure type with reference to the user capability and the neighboring BS information of user side, wherein said user capability is meant the relation of the frequency layer of user's neighbor cell and described user's current service cell, user's self ability, as information such as bandwidth ability, information such as the transmission bandwidth of adjacent area, in the present embodiment, whether network side can drop within the wide ability of customer receipt tape according to the center carrier frequence of the determined adjacent area of network side, whether the center carrier frequence as the adjacent area drops within the wide ability of customer receipt tape, and network side can determine the measurement of described adjacent area is adopted the measurement type of common frequency measurement; Otherwise employing different-frequency measure.
When two, determining by user side as the measurement type of adjacent area, at first network side is handed down to each user side with the neighboring BS information that generates, wherein network side is to issue described neighboring BS information according to system strategy, under UE was in idle condition, network side was encapsulated in described neighboring BS information in system information of subdistricts and is handed down to described user side; Under UE is in connection status, network side is handed down to user side to the neighboring BS information that each UE issues by specific information, for the specific information that issues can be RRC (Radio Resource Control, Radio Resource control) layer means of signaling also can be MAC (Media Access Control; The medium access control) layer means of signaling, network side issues neighboring BS information and is realized by network equipments such as base station or IADs in the present invention;
Be in the user of idle condition, described user side is only to receive neighboring BS information, can not receive the measuring control information that network side issues, user side can only be judged according to the neighboring BS information that receives, perhaps measure according to the differentiation tabulation that is stored in user side, relevant concrete process can be with reference to existing scheme.
Be in the user in the data transmission state, after receiving the neighboring BS information that network side issues, determine measuring type according to this neighboring BS information:
Wherein, if in the neighboring BS information that network side issues, classification has been arranged in the homologous ray Neighboring Cell List, then user side can be determined the adjacent area employing common frequency measurement of same frequency, different-frequency measure is adopted in the adjacent area of alien frequencies rate, and then UE determines to carry out the measurement type that measuring parameters in channels adopted, and the measurement type that UE will determine reports network side.
In such cases, UE also can not consider the classification of network side to the homologous ray Neighboring Cell List, and determine according to neighboring BS information and user capability, whether can drop within the reception bandwidth ability of UE according to the center carrier frequence of adjacent area such as network side, what determine described adjacent area is measured as common frequency measurement or different-frequency measure.
And if in the neighboring BS information that network side issues, have the Neighboring Cell List of different system, UE just thinks and has isosystem measurement, and decision is to the isosystem measurement that is measured as of described adjacent area, and reports network side.
In the present embodiment, if in the neighboring BS information that network side issues, the homologous ray Neighboring Cell List is not classified, the judgement that user side just need be measured type according to user capability and the neighboring BS information that is received, wherein user capability is meant the relation of the frequency layer of adjacent area and current service cell, the ability of UE self, as information such as bandwidth ability, information such as the transmission bandwidth of adjacent area, if UE judges the center carrier frequence of adjacent area and drops within the reception bandwidth ability of UE that UE judges the common frequency measurement that is measured as to described adjacent area; Otherwise be different-frequency measure.And then UE determined the measurement type that adopted, and the measurement type that UE will determine reports network side.
When described user side carries out transfer of data, described user side should be measured type and report before the network side, when having distinguished same frequency layer and different frequency layer cell information as described in the neighboring BS information that user side received, whether the neighboring BS information that the comparison of described user side receives under neighboring BS information that the idle condition read system message obtains and data transmission state is identical, if it is different, user side is when reporting definite measurement type, determine whether to carry the neighboring BS information that receives under the data transmission state according to the system strategy of setting, and upgrade the neighboring BS information that user side is safeguarded simultaneously; When not distinguishing same frequency layer and different frequency layer cell information in the neighboring BS information that the user side data transmission state is received down as described, user side will carry the neighboring BS information that is received under the described user side data transmission state when reporting definite measurement type; When being different system cell information as the neighboring BS information that user side received, described user side only need report definite measurement type.
202, network side generates measuring control information according to the determine measurement type that adopts, and is handed down to described user side.
If when determining the measurement type of adjacent area by network side, in step 202, network side is according to the measurement type of determined adjacent area in the step 201, as frequency measurement or different-frequency measure or isosystem measurement, generate corresponding measuring control information, and the neighboring BS information of the measurement of indicating in the measuring control information together is handed down to described user.
If when determining the measurement type of adjacent area by user side, comprise also that in described step 202 network side confirms whether to accept the step of user's measurement type requests, specifically:
Network side judges that according to system strategy the measurement type of reporting of user judges whether to accept the measurement type that the user determines, if the measurement type of reporting of user and the system strategy of setting are not inconsistent, network side can not accepted the determined measurement type of user, and network side can not send any indication, specifically decides according to system strategy;
If the reporting of user information that network side received conforms to system strategy, network side is accepted the determined measurement type of user side, network side is according to the determined measurement type of user, the measuring control information that issues common frequency measurement control information or different-frequency measure control information or isosystem measurement indicates UE to carry out the Target cell of which kind of measurement and every kind of measurement, wherein because different-frequency measure and isosystem measurement are bigger to the influence that UE causes, when so network side issues different-frequency measure control or isosystem measurement control information, can comprise simultaneously and measure required measurement space, each adjacent area, wherein required measurement space, each adjacent area is dispatched according to the network side strategy by network side to obtain.
203, described user side is measured according to the measuring control information that receives, and the measuring parameters in channels result is reported network side.
In step 203, if this measurement type is when being determined by network side, when user side receives this measuring control information, the user can directly measure according to the indication of network side, user side also can carry out once more judgement to the indication that network side issues, when the measurement control of not accepting network side, send request to network side, select suitable adjacent area to measure; User side feeds back to network side with measurement result with measurement report or alternate manner after the adjacent area is measured.
Described user feeds back to network side with measurement result with measurement report or alternate manner.
In the method for the invention, the measuring control information that network side issues can be the signaling of rrc layer, can be the signaling of MAC layer also, and be handed down to user side by the base station; The information that while UE reports equally also can be the signaling of rrc layer or the signaling of MAC layer.
The present invention simultaneously also provides a kind of measuring parameters in channels of neighboring areas system, as shown in Figure 3, Figure 4, has network equipment and a plurality of user side, also comprises the measuring parameters in channels unit of measuring the type determining unit and being located at user side, wherein
Measure the type determining unit, be used for the neighboring BS information that the neighboring BS information that generates according to network equipment or network equipment generate and the user capability of user side and determine the measurement type that user side adopts nearby region measurement;
The measuring parameters in channels unit is used to adopt and measures the definite user side of type determining unit institute the measurement type of nearby region measurement employing is carried out measuring parameters in channels, and by user side measurement result reported network equipment.
In system of the present invention, described measurement type determining unit is located at network equipment or user side.
In system of the present invention, described network equipment comprises at least: the neighboring BS information generation unit is used for generating neighboring BS information to measuring parameters in channels of neighboring areas according to system strategy or user side request; The measuring control information generation unit, the neighboring BS information and the described measurement type determining unit that are used for generating according to described neighboring BS information generation unit judge that described user side generates measuring control information to the measurement type that nearby region measurement adopts; Information issues the unit, is used to issue the message that network side generates; Information receiving unit is used to receive the information that user side sends.
In system of the present invention, described user side comprises: issue information receiving unit, be used to accept the information that network side issues; Information reports the unit, is used to carry out the order of network side, and execution result is reported described network equipment.
In system of the present invention, when determining user side measuring parameters in channels of neighboring areas type, can determine by dual mode:
One, the request of sending of the user side that receives according to the system strategy of network side or information receiving unit of the neighboring BS information generation unit of network equipment generates neighboring BS information, the measurement type determining unit that is positioned at the network equipment end is according to the neighboring BS information that generates and the user capability of described user side, described according to the method described above definite mode is determined the measurement type of an adjacent area, generate in view of the above and the pairing measuring control information of determining of measurement type by the measuring control information generation unit again, and issue the unit by information and be issued to described user side.
Two, the request that the user side that the neighboring BS information generation unit of network equipment receives according to the system strategy of network side or information receiving unit sends generates neighboring BS information, and be handed down to the information receiving unit that issues of described user side, the measurement type determining unit of position user side is according to the neighboring BS information that receives and the user capability of described user side, described according to the method described above definite mode is determined the measurement type of an adjacent area, and report the unit to report the information receiving unit of network equipment by information, the information receiving unit of network equipment is accepted this measurement type, send this information to the measuring control information generation unit, generate in view of the above and the pairing measuring control information of determining of measurement type by the measuring control information generation unit, and issue the unit by information and be issued to described user side, carry out the measurement of channels of neighboring areas parameter by described user side.
In sum, the present invention is by determining to the judgement of neighboring BS information neighbor cell is carried out measuring parameters in channels adopts which kind of to measure type, overcome the measurement type and the inapplicable technical problem of evolvement network that adopt under the UMTS system, realized improving and development of measurement mechanism.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. a method of measuring the channels of neighboring areas parameter is characterized in that, may further comprise the steps:
A, network side generate neighboring BS information, and are handed down to each user side; Described network side receives the measurement type that each measuring parameters in channels of neighboring areas that described user side reports adopts, and the measurement type that described each measuring parameters in channels of neighboring areas adopts is to be determined according to the neighboring BS information that receives by described user side;
B, network side generate measuring control information according to determined measurement type, and this information is handed down to user side; Indicate described user side to measure according to the measuring control information that receives;
Wherein, comprise before the described step B: network side judges whether to accept the measurement type that described user side reports according to the system strategy of setting, if accept this measurement type, execution in step B; Otherwise network side sends the information of this measurement type of refusal or does not reply described user side.
2. method according to claim 1, it is characterized in that, described neighboring BS information is that network side generates according to system strategy, and described neighboring BS information sends to the specific messages that the user side that is in data transmission state issues by system message or the network side towards the sub-district that network side issues.
3. method according to claim 2 is characterized in that, in steps A, when described user side carried out transfer of data, described user side should be measured type and report before the network side:
When having distinguished same frequency layer and different frequency layer cell information as described in the neighboring BS information that user side received, whether the neighboring BS information that described user side comparison read system message obtains is identical with the neighboring BS information that data transmission state receives down, if it is different, user side determines whether to carry the neighboring BS information that receives under the data transmission state according to the system strategy of setting when reporting definite measurement type;
When not distinguishing same frequency layer and different frequency layer cell information in the neighboring BS information that the user side data transmission state is received down as described, user side will carry the neighboring BS information that is received under the described user side data transmission state when reporting definite measurement type;
When being different system cell information as the neighboring BS information that user side received, described user side only need report definite measurement type.
4. method according to claim 1 is characterized in that; When wherein said user side carries out transfer of data:
When neighboring BS information was the adjacent area of different system as described, user side or network side determined to adopt the isosystem measurement type;
The branch time-like has been made in adjacent area to the homologous ray in the neighboring BS information of network side generation, user side or network side are determined in the adjacent area of same frequency or the common frequency measurement type is adopted in the adjacent area of same frequency layer, and the different-frequency measure type is adopted in the adjacent area of alien frequencies rate or the adjacent area of different frequency layer; Or
User side or network side are according to the definite measurement type that is adopted of described user's user capability.
5. method according to claim 1 is characterized in that, described user side specifically comprises according to the definite measurement type that adopts of the neighboring BS information that receives:
The neighboring BS information that generates when network side is the adjacent area of homologous ray, and when the neighboring BS information that network issues is unfiled, when described user side determines that according to user capability the center carrier frequence of this adjacent area drops within the reception bandwidth ability of described user side, the common frequency measurement type is adopted in described user side or network side decision, otherwise, adopt the different-frequency measure type.
6. method according to claim 1 is characterized in that, the information that information that network side issues or user side report adopts rrc layer signaling or MAC layer signaling.
7. method according to claim 1 is characterized in that, in described step B, described measuring control information comprise the common frequency measurement control information or/and the different-frequency measure control information or/and the isosystem measurement control information.
8. a measuring parameters in channels of neighboring areas system has network equipment and a plurality of user side, it is characterized in that, comprises the measuring parameters in channels unit of measuring the type determining unit and being located at user side:
Measure the type determining unit, be used for neighboring BS information, or the user capability of the neighboring BS information of network equipment generation and user side is determined the measurement type that user side adopts nearby region measurement according to the network equipment generation;
The measuring parameters in channels unit is used to adopt and measures the definite user side of type determining unit institute the measurement type of nearby region measurement employing is carried out measuring parameters in channels;
Described network equipment comprises at least: the neighboring BS information generation unit is used for generating neighboring BS information to measuring parameters in channels of neighboring areas according to system strategy or user side request;
The measuring control information generation unit, the neighboring BS information and the described measurement type determining unit that are used for generating according to described neighboring BS information generation unit judge that described user side generates measuring control information to the measurement type that nearby region measurement adopts;
Information issues the unit, is used to issue the message that network side generates;
Information receiving unit is used to receive the information that user side sends.
9. system according to claim 8 is characterized in that, described measurement type determining unit is located at network equipment or user side.
10. system according to claim 8 is characterized in that, described user side comprises:
Issue information receiving unit, be used to accept the information that network side issues;
Information reports the unit, is used to carry out the order of network side, and execution result is reported described network equipment.
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| CN101094482A (en) | 2007-12-26 |
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