CN103139829B - Method, apparatus and its base station of edge customer division are carried out in LTE system - Google Patents
Method, apparatus and its base station of edge customer division are carried out in LTE system Download PDFInfo
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- CN103139829B CN103139829B CN201110393304.5A CN201110393304A CN103139829B CN 103139829 B CN103139829 B CN 103139829B CN 201110393304 A CN201110393304 A CN 201110393304A CN 103139829 B CN103139829 B CN 103139829B
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Abstract
The invention discloses a kind of in LTE system carries out method, apparatus and its base station of edge customer division, the method includes：User equipment (UE) obtains the channel quality information of downlink by measuring cell special reference CRS, and is reported to base station；Base station is obtained according to the channel quality information differentiates parameter to divide the attribute of corresponding user equipment (UE) attribute, and differentiates that parameter carries out Attribute transposition to corresponding user equipment (UE) according to the attribute.What the present invention can greatly reduce Inter-Cell Interference Coordination measurement report reports number, to achieve the effect that save idle wireless resource, simultaneously because user equipment (UE) is not necessarily to frequently measure reporting for report, it is possible thereby to save the electric power of user equipment (UE) to a certain extent.
Description
Technical field
The present invention relates to wireless communication technology fields, in particular to one kind in LTE (Long Term
Evolution, long term evolution) method, apparatus and its base station of edge customer division are carried out in system using downlink measurement amount.
Background technology
LTE system will improve the performance of Cell Edge User as one of main target, and propose many needles
To how to improve the special technology solution of cell edge UE (User Equipment, user equipment) performance, wherein
The introducing of ICIC (Inter-Cell Interference Coordination, Inter-Cell Interference Coordination) technology is exactly for subtracting
Co-channel interference between few neighboring community, the performances such as handling capacity and user satisfaction to improve edge customer.
The ICIC that LTE system is supported is very flexibly and various, and according to the difference for considering angle and technical characterstic, there are a variety of
Sorting technique, such as according to the difference of coordination target, the ICIC that LTE system is supported can be divided into time domain ICIC and frequency domain
ICIC；According to frequency band division can be divided into FFR (Fractional Frequency Reuse, partial frequency multiplexing) and
SFR (Soft Frequency Reuse, soft-frequency reuse) etc.；It can be divided into according to the time granularity difference of coordination quiet
State ICIC, semi-static ICIC and dynamic I CIC etc., wherein static state ICIC generally takes fixed frequency band to divide, thus in certain journey
The flexibility of scheduling is limited on degree；Semi-static ICIC in the respective load information of X2 interface interaction then by realizing, relatively
It is more accurate for static ICIC；Dynamic I CIC then more consideration is given in terms of scheduling strategy, it is also more frequent on the time and and
When, thus it is relatively complicated.Regardless of which kind of ICIC mode taken, usually to determine that the UE dispatched in cell is CCU first
(Cell Center User, Cell Center User) or CEU (Cell Edge User, Cell Edge User), and according to CCU
Different resource allocation policies is respectively adopted with the different classifications of CEU, to achieve the purpose that ICIC.Therefore, carry out CCU and
The division of CEU is to realize a basic premise of ICIC effects.
In order to determine that UE is the CCU that the CEU in cell edge is in center, currently, LTE system is by using A3
Offered in event judge UE be in cell edge or center of housing estate, when UE meets A3 affair report conditions, just to
Network measures reporting for result, and specific practice is with RSRP (Reference Signal Receive Power, with reference to letter
Number receive power) it is reported as measurement amount, to distinguish UE be CCU or CEU, judgment method is as follows：
If when RSRPn-RSRPs ＞ TH_offset+TH_hys=TH1, then it is assumed that the UE enters cell edge, and judgement should
UE is CEU；If RSRPn-RSRPs ＜ TH_offset-TH_hys=TH2, then it is assumed that UE leaves cell edge, judges that the UE is
CCU.Wherein, RSRPn and RSRPs is respectively the Reference Signal Received Power RSRP, TH_ of adjacent cell and this cell that UE is measured
Offset is pre-set offset thresholding, and TH_hys is pre-set hysteretic threshold, and TH1 and TH2 are pre-set
RSRP discrimination thresholds.When the domains reportOnLeave of network side A3 events are set as TRUE, it is believed that RSRP measurement reports are
For ICIC's.
After network side receives the measurement result that the measurement event reports, network side is it may determine that it is place to go out corresponding UE
Different resource allocation policy and disturbance coordination method are used in cell edge or center of housing estate, and then to the UE.
It is by RRC (Radio Resource by the measurement report that the above method reports in LTE system
Control, radio resource control) layer signaling carried, and control layer protocol stack is as shown in Figure 1, RRC signaling is located at
On PDCP layers, measurement report is needed by PDCP layers, rlc layer, MAC layer from rrc layer transmission until physical PHY layer carries out sky
Then port transmission is transferred to the rrc layer of base station side equity again.As it can be seen that the transmission of RRC signaling needs to consume idle wireless resource,
And when current base station specifically determines that UE belongs to CEU or CCU, general way is to be arranged one to the measurement amount reported to sentence
Other threshold value can make UE frequently report ICIC measurement reports when actual threshold of the discrimination threshold of setting less than switching, from
And lead to a large amount of wastes of idle wireless resource, while the electric power resource of UE can be also consumed significantly.
Invention content
The embodiment of the present invention is designed to provide a kind of side carrying out edge customer division in long term evolution LTE system
Method, device and its base station can save idle wireless resource compared to existing technologies.
In order to reach the purpose of the present invention, the present invention is realized using following technical scheme：
A method of carrying out edge customer division in LTE system, including：
(Cell-specific Reference Signals, cell-specific is with reference to letter by measuring CRS for user equipment (UE)
Number) channel quality information of downlink is obtained, and reported to base station；
Base station is obtained according to the channel quality information differentiates ginseng to divide the attribute of corresponding user equipment (UE) attribute
Amount, and differentiate that parameter carries out Attribute transposition to corresponding user equipment (UE) according to the attribute.
Preferably, user equipment (UE) passes through measurement current area or the cell containing multiple neighboring communities except current area
DRS (Dedicated Reference Signal) CRS obtains the channel quality information of downlink.
Preferably, CQI (Channel Quality Indicator, channel quality may be used in the channel quality information
Instruction) grade or MCS grades indicated.
Preferably, base station is obtained according to the channel quality information to divide the attribute of corresponding user equipment (UE) attribute
Differentiate that the method for parameter is：Base station combine the current channel quality information that receives and historical channel new Methods of Quality Information Acquisition to
The attribute for dividing corresponding user equipment (UE) attribute differentiates parameter.
Preferably, base station obtains the method that the attribute to divide corresponding user equipment (UE) attribute differentiates parameter
For：Base station differentiates attributes of the channel quality got from user equipment (UE) the instruction grade CQI as respective user equipment UE
Parameter.
Preferably, base station carries out corresponding user equipment (UE) according to channel quality instruction grade CQI at the place of Attribute transposition
Managing step includes：
Channel quality instruction grade CQI and the pre-set channel quality discrimination threshold that respective user equipment UE is reported
It is compared, when its channel quality instruction grade CQI is greater than or equal to the channel quality discrimination threshold, by respective user equipment
UE is divided into Cell Center User CCU, otherwise, respective user equipment UE is divided into Cell Edge User CEU.
Preferably, base station carries out corresponding user equipment (UE) according to channel quality instruction grade CQI at the place of Attribute transposition
Managing step includes：
Channel quality instruction grade CQI and the pre-set channel quality discrimination threshold that respective user equipment UE is reported
It is compared, when its channel quality instruction grade CQI is greater than or equal to the channel quality discrimination threshold, by respective user equipment
UE is divided into doubtful Cell Center User CCU, otherwise, respective user equipment UE is divided into doubtful Cell Edge User CEU；
Calculate the ratio value shared by the doubtful Cell Edge User CEU, when the ratio value not be 0 when, take its with it is pre-
The calculating factor of the small person as Cell Edge User CEU numbers among the additional differentiation proportion threshold value the two being first arranged, by institute
The number for calculating the total number acquisition Cell Edge User CEU that the factor is multiplied by user equipment (UE) is stated, when the doubtful cell edge
When ratio value shared by user CEU is 0, by the additional total number acquisition cell for differentiating proportion threshold value and being multiplied by user equipment (UE)
The number of edge customer CEU.
Preferably, further include following steps after executing all steps：
Base station sets corresponding user according to the Reference Signal Received Power RSRP information of the reported by user equipment UE received
The Attribute transposition result of standby UE is verified, and when the user equipment (UE) for being divided into Cell Edge User CEU while having reported ginseng
It when examining signal reception power RSRP information, is then verified, and the corresponding user equipment (UE) is divided into Cell Edge User
CEU；When the user equipment (UE) for being divided into Cell Edge User CEU does not report Reference Signal Received Power RSRP information,
It then verifies and does not pass through, and the corresponding user equipment (UE) is divided into Cell Center User CCU；Wherein, the user equipment (UE)
It is pre-arranged reporting without Reference Signal Received Power RSRP information when to be moved from cell edge to center of housing estate.
A kind of device carrying out edge customer division in LTE system, including：
Receiving module, for obtaining the channel quality information reported from user equipment (UE), wherein user equipment (UE) passes through survey
Amount cell special reference CRS obtains the channel quality information of downlink and is reported；
Decision-making module, for dividing the category of corresponding user equipment (UE) attribute according to channel quality information acquisition
Property differentiate parameter, and according to the attribute differentiate parameter to corresponding user equipment (UE) carry out Attribute transposition.
Preferably, user equipment (UE) passes through measurement current area or the cell containing multiple neighboring communities except current area
DRS (Dedicated Reference Signal) CRS obtains the channel quality information of downlink and is reported.
Preferably, channel quality indicator (CQI) grade may be used in the channel quality information or MCS grades are indicated.
Preferably, decision-making module is obtained according to the channel quality information to divide corresponding user equipment (UE) attribute
Attribute differentiates that the method for parameter is：Decision-making module combines the current channel quality information received and historical channel quality information
It obtains and differentiates parameter to divide the attribute of corresponding user equipment (UE) attribute.
Preferably, decision-making module obtains the side that the attribute to divide corresponding user equipment (UE) attribute differentiates parameter
Method is：The channel quality got from user equipment (UE) instruction grade CQI is used as the category of respective user equipment UE by decision-making module
Property differentiate parameter.
Preferably, decision-making module carries out Attribute transposition according to channel quality instruction grade CQI to corresponding user equipment (UE)
Processing step include：
Channel quality instruction grade CQI and the pre-set channel quality discrimination threshold that respective user equipment UE is reported
It is compared, when its channel quality instruction grade CQI is greater than or equal to the channel quality discrimination threshold, by respective user equipment
UE is divided into Cell Center User CCU, otherwise, respective user equipment UE is divided into Cell Edge User CEU.
Preferably, decision-making module carries out Attribute transposition according to channel quality instruction grade CQI to corresponding user equipment (UE)
Processing step include：
Channel quality instruction grade CQI and the pre-set channel quality discrimination threshold that respective user equipment UE is reported
It is compared, when its channel quality instruction grade CQI is greater than or equal to the channel quality discrimination threshold, by respective user equipment
UE is divided into doubtful Cell Center User CCU, otherwise, respective user equipment UE is divided into doubtful Cell Edge User CEU；
Calculate the ratio value shared by the doubtful Cell Edge User CEU, when the ratio value not be 0 when, take its with it is pre-
The calculating factor of the small person as Cell Edge User CEU numbers among the additional differentiation proportion threshold value the two being first arranged, by institute
The number for calculating the total number acquisition Cell Edge User CEU that the factor is multiplied by user equipment (UE) is stated, when the doubtful cell edge
When ratio value shared by user CEU is 0, by the additional total number acquisition cell for differentiating proportion threshold value and being multiplied by user equipment (UE)
The number of edge customer CEU.
Preferably, the receiving module is further used for receiving the Reference Signal Received Power of reported by user equipment UE
RSRP information；The decision-making module is further used for according to the Reference Signal Received Power RSRP information to corresponding user
The Attribute transposition result of equipment UE is verified, and when the user equipment (UE) for being divided into Cell Edge User CEU while being reported
It when Reference Signal Received Power RSRP information, is then verified, and the corresponding user equipment (UE) is divided into cell edge and is used
Family CEU；When the user equipment (UE) for being divided into Cell Edge User CEU does not report Reference Signal Received Power RSRP information
When, then it verifies and does not pass through, and the corresponding user equipment (UE) is divided into Cell Center User CCU；Wherein, the user equipment
Without the upper of Reference Signal Received Power RSRP information when UE is pre-arranged to be moved from cell edge to center of housing estate
Report.
A kind of base station comprising carry out the device of edge customer division, described device packet in LTE system as described above
It includes：
Receiving module, for obtaining the channel quality information reported from user equipment (UE), wherein user equipment (UE) passes through survey
Amount cell special reference CRS obtains the channel quality information of downlink and is reported；
Decision-making module, for dividing the category of corresponding user equipment (UE) attribute according to channel quality information acquisition
Property differentiate parameter, and according to the attribute differentiate parameter to corresponding user equipment (UE) carry out Attribute transposition.
It can be seen that by the technical solution of aforementioned present invention and provided by the invention carry out edge customer in LTE system
The method, apparatus of division and its base station can carry out edge customer using existing and more ripe channel quality measurement mechanism
Division, compared to existing technologies, can greatly reduce Inter-Cell Interference Coordination measurement report reports number, to reach
To the effect for saving idle wireless resource, simultaneously because thus user equipment (UE) may be used without frequently measuring reporting for report
To save the electric power of user equipment (UE) to a certain extent.
Description of the drawings
Fig. 1 is the protocol stack structure schematic diagram of LTE system control plane, wherein eNB (evolved NodeB, the evolution
Type base station) be 3GPP protocol definitions base station, the MME (Mobility Management Entity, key control node)
It is the key control node of 3GPP agreements LTE access networks, it is responsible for the positioning of the user equipment (UE) of idle mode and notified from a phone call
Journey, including relaying；
Fig. 2 is the method flow schematic diagram provided in an embodiment of the present invention that edge customer division is carried out in LTE system；
Fig. 3 is the apparatus structure schematic diagram provided in an embodiment of the present invention that edge customer division is carried out in LTE system；
Fig. 4 is the front and back schematic diagram of channel quality information sequence.
The realization, functional characteristics and excellent effect of the object of the invention, below in conjunction with specific embodiment and attached drawing do into
The explanation of one step.
Specific implementation mode
Technical solution of the present invention is described in further detail in the following with reference to the drawings and specific embodiments, so that this
The technical staff in field can be better understood from the present invention and can be practiced, but illustrated embodiment is not as the limit to the present invention
It is fixed.
The method, apparatus provided by the invention that edge customer division is carried out in LTE system and its base station are suitable for macro eNB
(evolved base station) networking scene, can greatly reduce Inter-Cell Interference Coordination measurement report reports number, to economize on
Family equipment UE electric power and idle wireless resource.
Specifically, as shown in Fig. 2, provided in an embodiment of the present invention a kind of carrying out edge customer division in LTE system
Method, the method includes following specific steps：
S10, user equipment (UE) obtain the channel quality information of downlink by measuring cell special reference CRS, and will
It reports to base station；
In this step, it is preferable that user equipment (UE) is by measuring current area or containing multiple phases except current area
The cell special reference CRS of adjacent cell obtains the channel quality information of downlink, wherein the channel quality information can be adopted
It is indicated with channel quality indicator (CQI) grade or MCS grades, for the different embodiment of above two, wherein：
Mode one：User equipment (UE) only measures the channel matter of the cell special reference CRS acquisition downlinks of current area
Information is measured, and the channel quality information is expressed as channel quality indicator (CQI) grade and reports to base station, the method is suitable for quiet
State and semi-static ICIC modes；
Mode two：User equipment (UE) measures the cell special reference containing multiple neighboring communities except current area
CRS obtains the channel quality information of downlink, and the channel quality information is expressed as channel quality indicator (CQI) grade and is reported to
Base station, the method are suitable for dynamic I CIC modes.
S20, base station are obtained according to the channel quality information to be sentenced to divide the attribute of corresponding user equipment (UE) attribute
Other parameter, and differentiate that parameter carries out Attribute transposition to corresponding user equipment (UE) according to the attribute.
In this step, it is preferable that base station obtains to divide corresponding user equipment according to the channel quality information
The attribute of UE attributes differentiates that the method for parameter is：Base station combines the current channel quality information received and historical channel quality
Acquisition of information differentiates parameter to divide the attribute of corresponding user equipment (UE) attribute, wherein base station will be obtained from user equipment (UE)
Attributes of the channel quality instruction grade CQI as respective user equipment UE got differentiates parameter.
For example, base station handles channel quality information obtained above, obtain eventually for division user property
Attribute differentiates parameter.This step need to consider specific configuration information that cell special reference CRS measures (such as：Week
Phase property, period size and the time interval etc. of measurement), ICIC algorithm characteristics (static, semi-static, dynamic etc.), user tune
The various factors such as the transmission mode of degree situation (such as needing to consider the adjustment etc. of CQI) and downlink.Specific processing method can be with
For：Grade CQI processing directly is indicated to the channel quality of reported by user equipment UE, considers cell special reference
The factors such as specific configuration information, ICIC algorithm characteristics, user's dispatch situation and the downlink transfer pattern that CRS is measured, can adopt
Instantaneous channel quality is used to indicate that the attribute of grade CQI value as division of cells edge customer CEU or Cell Center User CCU are sentenced
Other parameter.
In actual application, since the channel quality of user equipment (UE) is continually changing, in actual category
Property differentiate in parameter acquisition process, base station combines the current channel quality information that receives and historical channel new Methods of Quality Information Acquisition
Attribute to divide corresponding user equipment (UE) attribute differentiates parameter CQI_f, such as when the quantity of user equipment (UE) is 100
When, the attribute of each user equipment (UE) obtained through the above way differentiate parameter can be denoted as CQI_fi, i=1,2 ...,
99}。
Under a kind of preferred embodiment, base station carries out corresponding user equipment (UE) according to channel quality instruction grade CQI
The processing step of Attribute transposition includes：
Channel quality instruction grade CQI and the pre-set channel quality discrimination threshold that respective user equipment UE is reported
It is compared, when its channel quality instruction grade CQI is greater than or equal to the channel quality discrimination threshold, by respective user equipment
UE is divided into Cell Center User CCU, otherwise, respective user equipment UE is divided into Cell Edge User CEU.
For example, for above-mentioned acquisition each user equipment (UE) attribute differentiate parameter CQI_fi, i=1,2 ...,
99 }, the attribute of each user equipment (UE) can be divided according to following method and step, to distinguish each user equipment (UE)
It is Cell Center User CCU or Cell Edge User CEU, it is as follows：
1, as shown in figure 4, differentiating parameter { CQI_fi, i=to obtaining attribute corresponding with each user equipment (UE) first
1,2 ..., 99 } it is ranked up according to magnitude relationship,；
2, differentiate that parameter carries out cell side according to the attribute of each user equipment (UE) obtained above using certain strategy
The division of edge user CEU or Cell Center User CCU, specific method are：
Channel quality discrimination threshold CQI_TH is pre-set, when the attribute for measuring obtained user equipment (UE) differentiates that parameter is big
When this channel quality discrimination threshold CQI_TH, it is believed that the user channel quality is preferable, and user equipment (UE) attribute is set
It is set to Cell Center User CCU；When the attribute that user equipment (UE) measurement obtains differentiates that parameter is less than this threshold value thresholding, it is believed that the use
The channel quality of family equipment UE is poor, sets user equipment (UE) attribute to Cell Edge User CEU.Wherein, the channel matter
Amount discrimination threshold CQI_TH can respectively be safeguarded by each base station in system, can also be configured by O＆M.
More preferably under another embodiment, base station sets corresponding user according to channel quality instruction grade CQI
The processing step that standby UE carries out Attribute transposition includes：
(1) channel quality instruction grade CQI and the pre-set channel quality reported respective user equipment UE differentiates
Threshold value is compared, when its channel quality instruction grade CQI is greater than or equal to the channel quality discrimination threshold, by relative users
Equipment UE is divided into doubtful Cell Center User CCU, otherwise, respective user equipment UE is divided into doubtful Cell Edge User
CEU；
(2) calculate the ratio value shared by the doubtful Cell Edge User CEU, when the ratio value is not 0, take its with
The calculating factor of the small person as Cell Edge User CEU numbers among pre-set additional differentiation proportion threshold value the two, will
The number for calculating the factor and being multiplied by the total number acquisition Cell Edge User CEU of user equipment (UE), when the doubtful cell side
When ratio value shared by edge user CEU is 0, the total number that the additional differentiation proportion threshold value is multiplied by user equipment (UE) is obtained small
The number of area edge user CEU.
For example, in this step, additional differentiation proportion threshold value X% is arranged, wherein X ∈ [0,100].The institute being calculated
It states the ratio value shared by doubtful Cell Edge User CEU and is denoted as Y%.The value for comparing X% and Y% differentiates the attribute after sequence
Parameter { CQI_fi, i=1,2 ..., 99 } is handled as follows according to following formula：
At this point, when the ratio value is not 0, take itself and it is pre-set it is additional differentiate it is small among both proportion threshold values
The calculating factor of the person as Cell Edge User CEU numbers obtains the total number that the calculating factor is multiplied by user equipment (UE)
The number of Cell Edge User CEU when the ratio value shared by the doubtful Cell Edge User CEU is 0, additional is sentenced described
Other proportion threshold value is multiplied by the number of the total number acquisition Cell Edge User CEU of user equipment (UE).Wherein, the additional differentiation ratio
Example threshold X % can be flexibly configured according to the load of system and service conditions.And two kinds of extreme cases are analyzed here：
The first, is that the signal quality of each user equipment (UE) in cell is all fine, i.e., doubtful Cell Edge User CEU institutes
The ratio value Y%=0% accounted for, the user equipment (UE) Attribute transposition method provided according to the first above-mentioned embodiment can be by this
Certain customers' equipment UE is directly disposed as Cell Center User CCU, and to be on the safe side, it prevents from causing certain do to adjacent area
It disturbs, the family equipment UE Attribute transposition method provided in the embodiment can force that a certain proportion of Cell Edge User is arranged
CEU。
Second, be that the channel quality of all user equipment (UE)s of certain cell is worse than the threshold value of setting (at this point, Y%=
100%), at this point, the family equipment UE Attribute transposition method provided in the embodiment can force setting certain proportion X%'s
User is as Cell Edge User CEU, and other users are as Cell Center User CCU.
According to the method provided in an embodiment of the present invention for carrying out edge customer division in LTE system, above-mentioned step is being executed
Further include following steps after rapid S10 and S20：
The Reference Signal Received Power RSRP information for the reported by user equipment UE that S30, base station foundation receive is to corresponding use
The Attribute transposition result of family equipment UE is verified, and when the user equipment (UE) for being divided into Cell Edge User CEU while being reported
When Reference Signal Received Power RSRP information, then it is verified, and the corresponding user equipment (UE) is divided into cell edge
User CEU；When the user equipment (UE) for being divided into Cell Edge User CEU does not report Reference Signal Received Power RSRP information
When, then it verifies and does not pass through, and the corresponding user equipment (UE) is divided into Cell Center User CCU；Wherein, the user equipment
Without the upper of Reference Signal Received Power RSRP information when UE is pre-arranged to be moved from cell edge to center of housing estate
Report.
As shown in figure 3, the embodiment of the present invention additionally provides a kind of device carrying out edge customer division in LTE system
20, described device 20 includes：
Receiving module 201, for obtaining the channel quality information reported from user equipment (UE) 10, wherein user equipment
UE10 is by measuring the channel quality information of cell special reference CRS acquisition downlinks and being reported；Specific implementation process
In, cell-specific reference letter of the user equipment (UE) 10 by measuring current area or containing multiple neighboring communities except current area
Number CRS obtains the channel quality information of downlink and is reported, and refers to wherein channel quality may be used in the channel quality information
Show that CQI grades or MCS grades are indicated；
Decision-making module 202 belongs to for being obtained according to the channel quality information to divide corresponding user equipment (UE) 10
Property attribute differentiate parameter, and according to the attribute differentiate parameter to corresponding user equipment (UE) 10 carry out Attribute transposition.
Wherein, decision-making module 202 is obtained according to the channel quality information belongs to divide corresponding user equipment (UE) 10
Property attribute differentiate parameter method be：Decision-making module 202 combines the current channel quality information received and historical channel
New Methods of Quality Information Acquisition differentiates parameter, more specifically, decision-making module to divide the attribute of 10 attribute of corresponding user equipment (UE)
202 differentiate attributes of the channel quality got from user equipment (UE) 10 the instruction grade CQI as respective user equipment UE10
Parameter.
Under a kind of embodiment, decision-making module 202 indicates grade CQI to corresponding user equipment (UE) 10 according to channel quality
Carry out Attribute transposition processing step include：
Channel quality instruction grade CQI and the pre-set channel quality that respective user equipment UE10 is reported differentiate threshold
Value is compared, and when its channel quality instruction grade CQI is greater than or equal to the channel quality discrimination threshold, relative users are set
Standby UE10 is divided into Cell Center User CCU, otherwise, respective user equipment UE10 is divided into Cell Edge User CEU.
Before executing above-mentioned steps, the decision-making module 202 is additionally operable to indicate grade CQI according to size channel quality
Sequence is ranked up.
Under another embodiment, decision-making module 202 indicates grade CQI to corresponding user equipment according to channel quality
UE10 carry out Attribute transposition processing step include：
1, channel quality instruction grade CQI and the pre-set channel quality reported respective user equipment UE10 differentiates
Threshold value is compared, when its channel quality instruction grade CQI is greater than or equal to the channel quality discrimination threshold, by relative users
Equipment UE 10 is divided into doubtful Cell Center User CCU, otherwise, respective user equipment UE10 is divided into doubtful cell edge and is used
Family CEU；
2, calculate the ratio value shared by the doubtful Cell Edge User CEU, when the ratio value is not 0, take its with
The calculating factor of the small person as Cell Edge User CEU numbers among pre-set additional differentiation proportion threshold value the two, will
The number for calculating the factor and being multiplied by the total number acquisition Cell Edge User CEU of user equipment (UE) 10, when the doubtful cell
When ratio value shared by edge customer CEU is 0, the total number that the additional differentiation proportion threshold value is multiplied by user equipment (UE) 10 is obtained
Obtain the number of Cell Edge User CEU.
Similarly, before executing above-mentioned steps, the decision-making module 202 is additionally operable to channel quality instruction grade CQI
It is ranked up according to size order.
In addition, the receiving module 201 is further used for receiving the reference signal reception work(that user equipment (UE) 10 reports
Rate RSRP information；The decision-making module 202 is further used for according to the Reference Signal Received Power RSRP information to correspondence
The Attribute transposition result of user equipment (UE) 10 verified, when the user equipment (UE) 10 for being divided into Cell Edge User CEU
When having reported Reference Signal Received Power RSRP information simultaneously, then it is verified, and the corresponding user equipment (UE) 10 is divided
For Cell Edge User CEU；When the user equipment (UE) 10 for being divided into Cell Edge User CEU does not report reference signal to receive
It when power RSRP information, then verifies and does not pass through, and the corresponding user equipment (UE) 10 is divided into Cell Center User CCU；Its
In, it is received without reference signal when the user equipment (UE) 10 is pre-arranged to be moved from cell edge to center of housing estate
Power RSRP information reports.
The embodiment of the present invention additionally provides a kind of base station, and the base station includes carrying out side in LTE system as described above
The device 20 that edge user divides, with continued reference to Fig. 3, described device 20 includes：
Receiving module 201, for obtaining the channel quality information reported from user equipment (UE) 10, wherein user equipment
UE10 is by measuring the channel quality information of cell special reference CRS acquisition downlinks and being reported；
Decision-making module 202 belongs to for being obtained according to the channel quality information to divide corresponding user equipment (UE) 10
Property attribute differentiate parameter, and according to the attribute differentiate parameter to corresponding user equipment (UE) 10 carry out Attribute transposition.
The device 20 that edge customer division is carried out in LTE system for including for the base station further specifically
It is bright, it can be right here in conjunction with the related explanation of the above concerning method and device 20 for carrying out edge customer division in LTE system
It is no longer repeated for it.
The method, apparatus provided by the invention that edge customer division is carried out in LTE system and its base station can utilize existing
The division that channel quality measurement mechanism have and more ripe carries out edge customer compared to existing technologies can be significantly
That reduces Inter-Cell Interference Coordination measurement report reports number, to achieve the effect that save idle wireless resource, simultaneously because
User equipment (UE) 10 is without frequently measuring reporting for report, it is possible thereby to save the electricity of user equipment (UE) 10 to a certain extent
Power.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every utilization
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations
Technical field, be included within the scope of the present invention.
Claims (15)
1. a kind of method carrying out edge customer division in LTE system, which is characterized in that including：
User equipment (UE) obtains the channel quality information of downlink by measuring cell special reference CRS, and is reported to
Base station, the cell include current area or current area and multiple adjacent cells；
Base station is obtained according to the channel quality information differentiates parameter to divide the attribute of corresponding user equipment (UE) attribute, and
Differentiate that parameter carries out Attribute transposition to corresponding user equipment (UE) according to the attribute.
2. the method for carrying out edge customer division in LTE system as described in claim 1, which is characterized in that the channel
Channel quality indicator (CQI) grade may be used in quality information or MCS grades are indicated.
3. the method for carrying out edge customer division in LTE system as claimed in claim 2, which is characterized in that base station foundation
The channel quality information obtains differentiates that the method for parameter is to divide the attribute of corresponding user equipment (UE) attribute：It ties base station
Current channel quality information that splice grafting receives and historical channel new Methods of Quality Information Acquisition are dividing corresponding user equipment (UE) category
Property attribute differentiate parameter.
4. the method for carrying out edge customer division in LTE system as claimed in claim 2, which is characterized in that base station obtains
The attribute to divide corresponding user equipment (UE) attribute differentiates that the method for parameter is：Base station will be obtained from user equipment (UE)
Attributes of the channel quality instruction grade CQI as respective user equipment UE arrived differentiates parameter.
5. the method for carrying out edge customer division in LTE system as claimed in claim 4, which is characterized in that base station foundation
Channel quality indicates that the processing step that grade CQI carries out corresponding user equipment (UE) Attribute transposition includes：
Channel quality instruction grade CQI and the pre-set channel quality discrimination threshold that respective user equipment UE is reported carry out
It compares, when its channel quality instruction grade CQI is greater than or equal to the channel quality discrimination threshold, respective user equipment UE is drawn
It is divided into Cell Center User CCU, otherwise, respective user equipment UE is divided into Cell Edge User CEU.
6. the method for carrying out edge customer division in LTE system as claimed in claim 4, which is characterized in that base station foundation
Channel quality indicates that the processing step that grade CQI carries out corresponding user equipment (UE) Attribute transposition includes：
Channel quality instruction grade CQI and the pre-set channel quality discrimination threshold that respective user equipment UE is reported carry out
It compares, when its channel quality instruction grade CQI is greater than or equal to the channel quality discrimination threshold, respective user equipment UE is drawn
It is divided into doubtful Cell Center User CCU, otherwise, respective user equipment UE is divided into doubtful Cell Edge User CEU；
The ratio value shared by the doubtful Cell Edge User CEU is calculated, when the ratio value is not 0, it is taken and sets in advance
The calculating factor of the small person as Cell Edge User CEU numbers among the additional differentiation proportion threshold value the two set, by the meter
The number that the factor is multiplied by the total number acquisition Cell Edge User CEU of user equipment (UE) is calculated, when the doubtful Cell Edge User
When ratio value shared by CEU is 0, by the additional total number acquisition cell edge for differentiating proportion threshold value and being multiplied by user equipment (UE)
The number of user CEU.
7. the method for carrying out edge customer division in LTE system as described in claim 1, which is characterized in that executing institute
Further include following steps after having step：
The Reference Signal Received Power RSRP information for the reported by user equipment UE that base station foundation receives is to corresponding user equipment (UE)
Attribute transposition result verified, when the user equipment (UE) for being divided into Cell Edge User CEU and meanwhile reported with reference to believe
Number receive power RSRP information when, then be verified, and the corresponding user equipment (UE) is divided into Cell Edge User CEU；
When the user equipment (UE) for being divided into Cell Edge User CEU does not report Reference Signal Received Power RSRP information, then test
Card does not pass through, and the corresponding user equipment (UE) is divided into Cell Center User CCU；Wherein, the user equipment (UE) quilt
Pre-set reporting without Reference Signal Received Power RSRP information when to be moved from cell edge to center of housing estate.
8. a kind of device carrying out edge customer division in LTE system, which is characterized in that including：
Receiving module, for obtaining the channel quality information reported from user equipment (UE), wherein user equipment (UE) is small by measuring
Area DRS (Dedicated Reference Signal) CRS obtains the channel quality information of downlink and is reported, and the cell includes current area, or is worked as
Preceding cell and multiple adjacent cells；
Decision-making module is sentenced for being obtained according to the channel quality information to divide the attribute of corresponding user equipment (UE) attribute
Other parameter, and differentiate that parameter carries out Attribute transposition to corresponding user equipment (UE) according to the attribute.
9. the device of edge customer division is carried out in LTE system as claimed in claim 8, which is characterized in that the channel
Channel quality indicator (CQI) grade may be used in quality information or MCS grades are indicated.
10. the device of edge customer division is carried out in LTE system as claimed in claim 9, which is characterized in that decision-making module
It is obtained according to the channel quality information and differentiates that the method for parameter is to divide the attribute of corresponding user equipment (UE) attribute：Certainly
Plan module combines the current channel quality information received and historical channel new Methods of Quality Information Acquisition to divide corresponding user
The attribute of equipment UE attribute differentiates parameter.
11. the device of edge customer division is carried out in LTE system as claimed in claim 10, which is characterized in that decision model
Block obtains the attribute to divide corresponding user equipment (UE) attribute and differentiates that the method for parameter is：Decision-making module will be from user
Attributes of the channel quality instruction grade CQI as respective user equipment UE that equipment UE is got differentiates parameter.
12. the device of edge customer division is carried out in LTE system as claimed in claim 11, which is characterized in that decision model
Block indicates that the processing step that grade CQI carries out corresponding user equipment (UE) Attribute transposition includes according to channel quality：
Channel quality instruction grade CQI and the pre-set channel quality discrimination threshold that respective user equipment UE is reported carry out
It compares, when its channel quality instruction grade CQI is greater than or equal to the channel quality discrimination threshold, respective user equipment UE is drawn
It is divided into Cell Center User CCU, otherwise, respective user equipment UE is divided into Cell Edge User CEU.
13. the device of edge customer division is carried out in LTE system as claimed in claim 10, which is characterized in that decision model
Block indicates that the processing step that grade CQI carries out corresponding user equipment (UE) Attribute transposition includes according to channel quality：
Channel quality instruction grade CQI and the pre-set channel quality discrimination threshold that respective user equipment UE is reported carry out
It compares, when its channel quality instruction grade CQI is greater than or equal to the channel quality discrimination threshold, respective user equipment UE is drawn
It is divided into doubtful Cell Center User CCU, otherwise, respective user equipment UE is divided into doubtful Cell Edge User CEU；
The ratio value shared by the doubtful Cell Edge User CEU is calculated, when the ratio value is not 0, it is taken and sets in advance
The calculating factor of the small person as Cell Edge User CEU numbers among the additional differentiation proportion threshold value the two set, by the meter
The number that the factor is multiplied by the total number acquisition Cell Edge User CEU of user equipment (UE) is calculated, when the doubtful Cell Edge User
When ratio value shared by CEU is 0, by the additional total number acquisition cell edge for differentiating proportion threshold value and being multiplied by user equipment (UE)
The number of user CEU.
14. the device of edge customer division is carried out in LTE system as claimed in claim 8, which is characterized in that the reception
Module is further used for receiving the Reference Signal Received Power RSRP information of reported by user equipment UE；The decision-making module also into
One step is used to carry out the Attribute transposition result of corresponding user equipment (UE) according to the Reference Signal Received Power RSRP information
Verification, when the user equipment (UE) for being divided into Cell Edge User CEU while having reported Reference Signal Received Power RSRP information
When, then it is verified, and the corresponding user equipment (UE) is divided into Cell Edge User CEU；When being divided into cell edge
It when the user equipment (UE) of user CEU does not report Reference Signal Received Power RSRP information, then verifies and does not pass through, and by the correspondence
User equipment (UE) be divided into Cell Center User CCU；Wherein, the user equipment (UE) is pre-arranged as by cell edge
Reporting without Reference Signal Received Power RSRP information when being moved to center of housing estate.
15. a kind of base station, which is characterized in that include carrying out edge use in LTE system as described in claim 8-14 is any
The device that family divides.
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| CN103987045B (en) * | 2014-05-28 | 2017-07-11 | 京信通信系统（中国）有限公司 | A kind of edge customer attribute determining method and device |
| CN105162549B (en) * | 2015-07-28 | 2018-07-17 | 大唐移动通信设备有限公司 | A kind of location-based CQI period modulations method and base station |
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| CN101505182A (en) * | 2009-03-18 | 2009-08-12 | 北京邮电大学 | Data transmission method and base station based on wave beam forming in multi-antenna system |
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| CN101505182A (en) * | 2009-03-18 | 2009-08-12 | 北京邮电大学 | Data transmission method and base station based on wave beam forming in multi-antenna system |
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