CN101132614B - Cell re-selection method, device and system - Google Patents
Cell re-selection method, device and system Download PDFInfo
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- CN101132614B CN101132614B CN2006101115309A CN200610111530A CN101132614B CN 101132614 B CN101132614 B CN 101132614B CN 2006101115309 A CN2006101115309 A CN 2006101115309A CN 200610111530 A CN200610111530 A CN 200610111530A CN 101132614 B CN101132614 B CN 101132614B
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Abstract
This invention relates to a re-selection method for local areas, a device and a system for reducing call loss of user devices at connection state including: a UE gets the identity information of a base station where an adjacent area locates and selects a local area in the same identity information with the base station where the current local area of the UE locates in priority based on the identity information of the base station, therefore, UE can influence sequence of current and adjacent local areas based on the idnetity information of the base station and retarding parameter of call loss and UE can try its best to select an area belonging to a same base station to respond paging of network as much as possible.
Description
Technical field
The present invention relates to residence reselecting and system, relate in particular to a kind of residence reselecting and system that reduces connection status subscriber equipment call loss.
Background technology
In the cell reselection process of WCDMA (Wideband Code Division Multiple Access (WCDMA)) prior art, user terminal is finished measurement to the signal quality of adjacent sub-district and current area, and adopts the R criterion to sort:
User terminal is after the criterion specific according to certain (as the R criterion of UMTS (universal mobile telecommunications system)) compares, and the signal of adjacent sub-district is better than the sub-district of user terminal current service; Signal when adjacent sub-district is better than user terminal current service cell signal, and the duration reaches or when being higher than Treselection (sub-district gravity treatment timer duration), then will reselect this neighbour sub-district as Serving cell.
In the prior art, if consider the situation of HCS (hierarchical network), can be expressed as the R criterion of measuring the ordering of carrying out the sub-district:
R
s＝Q
meas，s+Qhyst
s+Qoffmbms； (1)
R
n＝Q
meas，n-Qoffset
s，n+Qoffmbms-TO
n*(1-L
n)； (2)
Wherein,
In formula (1), R
sBe the ranking value of current area (being Serving cell), Q
Meas, sBe the measurement mass value of current area, Qhyst
sBe that the user terminal that is in connection status is in CELL_PCH, the lagged value of the sub-district gravity treatment that causes during the CELL_FACH state, this value issues by system broadcast message.
In formula (2), R
nBe the ranking value of adjacent sub-district, and Q
Meas, nBe the measured value of adjacent sub-district, Qoffset
S, nBe the bias that carries out the sub-district gravity treatment between current area and the adjacent sub-district, this value can be provided with and issue in system broadcast message voluntarily.
In formula (2), component TO
nCan be expressed as:
TO
n＝TEMP_OFFSET
n*W(PENALTY_TIME
n-T
n)
L
n＝0 if?HCS_PRIO
n＝HCS_PRIO
s
L
n＝1 if?HCS_PRIO
n＜＞HCS_PRIO
s
W(x)＝0 for?x＜0
W(x)＝1 for?x＞＝0
Wherein, TEMP_OFFSET
nAnd PENALTY_TIME
nOnly be applied to the situation of indication use HCS in system message.
In formula (1) and (2), the biasing factor of Qoffmbms when being applied to the sub-district of MBMS PL (Multimedia Broadcast Multicast Service optimized frequency layer), promptly when not considering the situation of MBMS (Multimedia Broadcast Multicast Service), this biasing Qoffmbms can consider.
In the description formula of above-mentioned R criterion, when not using HCS situation following time, corresponding R criterion is described formula and just can be reduced to:
R
s＝Q
meas，s+Qhyst
s； (3)
R
n＝Q
meas，n-Qoffset
s，n； (4)
The formula of describing from above-mentioned formula (1) to formula (4) as can be seen, for current area, in the R criterion, its ranking value R
sBe its measured value Q
Meas, sWith a lagged value Qhyst
sSum.And for adjacent sub-district, its ranking value R
nBe its measured value Q
Meas, nWith a bias Qoffset
S, nPoor.That is to say in the R criterion have value addedly for current area, for adjacent sub-district the processing of depreciation is arranged, to embody the thought of preferred current area.
And, in the WCDMA technology, owing to adopted grand diversity technique, make subscriber terminal service RNC (Serving RNC, promptly preserve the contextual radio network controller of user terminal RRC, be the interface of user terminal and core net) and control RNC (Controlling RNC, promptly user terminal has used the local resource under the control RNC) can be inconsistent.Promptly, when user terminal carries out the sub-district gravity treatment, if when the Target cell that obtains by cell reselection rules and current area belonged to different RNC, the also unnecessary execution of user terminal SRNS relocation (reorientation of SRNS Serving Radio Network Subsystem) process was carried out the contextual process of moving of RRC of user terminal.
In the LTE system,, make that the serving BS of user terminal is identical with the control base station all the time owing to cancelled grand diversity technique.That is,, between the old serving BS of user terminal and new serving BS, be bound to take place the process that the RRC context of user terminal is moved as long as variation has taken place for the serving BS of sub-district, user terminal place.And in the process that context is moved, owing to relate to many space interface signalings, in the reciprocal process of these signalings, can cause user terminal can't response to network to its paging, thereby the call completion rate is reduced, increased the equipment percent of call lost of user terminal connection status.
In the LTE system, user terminal carries out the defective that the call completion rate of user terminal in the process that context moves reduces between different base station at above-mentioned, and the technical scheme that not have at present to be correlated with can solve.
Summary of the invention
The implementation method and the Apparatus and system that the purpose of this invention is to provide the gravity treatment of a kind of sub-district, make user terminal under idle condition, in carrying out sub-district reselection operation process as much as possible gravity treatment in the sub-district that belongs under the same base station, thereby reduce the percent of call lost.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides the implementation method of a kind of sub-district gravity treatment, comprising:
User terminal obtains the identity information of base station, place, adjacent sub-district, and according to the identity information identical sub-district of the preferential selection of the identity information of described base station with base station, user terminal current area place, described preferential selection comprises:
Be in adjacent sub-district same base station under if exist, then directly carry out the sub-district reselection operation being in the adjacent sub-district under the same base station with current area with current area;
Perhaps, after the weight that is in the adjacent sub-district under the same base station with current area and/or is in the adjacent sub-district under the different base station adjusted, carry out the sub-district reselection operation in the adjacent sub-district after adjusting weight, described weight is determined by the sluggish parameter of call loss.
Described identity information comprises: the Base Station Identification of current area; Perhaps, identify the sign that described adjacent sub-district and current area belong to identical or different base station.
The described operation that the weight of adjacent sub-district is adjusted comprises: increase and current area are in the weight of adjacent sub-district in cell reselection process under the same base station;
And/or,
Minimizing and current area are in the weight of adjacent sub-district in cell reselection process under the different base station.
Method of the present invention also comprises:
To determine that according to required call loss situation the sluggish parameter of call loss of each sub-district of base station offers each base station by the operator maintenance centre, and increase the identity information of relevant base station by each base station after, be broadcast to user terminal by system broadcast message.
The sluggish parameter of described call loss comprises: with sluggish parameter of base station call loss and/or the sluggish parameter of different base station call loss.
The described operation that the weight of adjacent sub-district is adjusted specifically comprises:
After described user terminal is received described broadcast, judge according to the identity information of wherein base station whether adjacent sub-district belongs to same base station with current area;
To carry out handling with the cell reselection parameters that current area is in the adjacent sub-district under the same base station according to judged result according to the increase of the sluggish parameter of call loss of this sub-district; And/or, will carry out handling with the cell reselection parameters that current area is in the adjacent sub-district under the different base station according to the minimizing of the corresponding sluggish parameter of this sub-district call loss.
Described increase is handled, and/or described minimizing is handled and specifically comprised:
To increase the sluggish parameter of same base station call loss that network side issues with the cell reselection parameters that current area is in the adjacent sub-district under the same base station according to judged result; And/or, will deduct the sluggish parameter of different base station call loss that network side issues with the cell reselection parameters that current area is in the adjacent sub-district under the different base station;
Perhaps,
To multiply by the sluggish parameter of same base station call loss that network side issues with the adjacent sub-district corresponding district reselecting parameters that current area is under the same base station according to judged result; And/or, will multiply by the sluggish parameter of different base station call loss that network side issues with the adjacent sub-district corresponding district reselecting parameters that current area is under the different base station.
The present invention also provides the implement device of a kind of sub-district gravity treatment, and this device is arranged in the user terminal, and described device comprises:
Base station identity information determining unit is used for determining the identity information of base station, place, adjacent sub-district, and offers the cell reselection process unit;
The cell reselection process unit is used for according to the identity information identical sub-district of the preferential selection of the identity information of described base station with base station, user terminal current area place;
The sluggish parameter receiving element of call loss is used to receive the sluggish parameter information of call loss that the base station sends, and offers the cell reselection process unit;
Described cell reselection process unit comprises:
The judgment processing unit is used to judge and determines that whether adjacent sub-district is under the same base station with sub-district, the current place of user terminal, and judged result is offered reselection operation unit, sub-district;
Reselection operation unit, sub-district is used for the judged result according to the judgment processing unit, utilizes the sluggish parameter adjustment of described call loss preferably to be in adjacent sub-district under the same base station with sub-district, the current place of user terminal.
Described base station identity information determining unit comprises:
The broadcast receiving element is used to receive the broadcast that includes base station identity information that send the base station, and the sluggish parameter information of call loss that carries in the broadcast is sent to the sluggish parameter receiving element of call loss.And the broadcast that will contain base station identity information offers the base station identity recognition unit;
The base station identity recognition unit is used for determining the identity information of base station, place, adjacent sub-district according to the information that described broadcast receiving element provides, and offers the cell reselection process unit.
Reselection operation unit, described sub-district specifically comprises:
The cell reselection parameters adjustment unit, being used for that sub-district, the current place of user terminal is in sub-district corresponding district reselecting parameters under the same base station carries out handling at the increase of the sluggish parameter of call loss of this sub-district, and/or, sub-district, the current place of user terminal is in sub-district corresponding district reselecting parameters under the different base station carries out handling at the minimizing of the sluggish parameter of call loss of this sub-district;
Ordering processing unit in sub-district is used for according to the processing of sorting of adjusted each sub-district corresponding district reselecting parameters;
The cell selecting unit is used for carrying out the sub-district gravity treatment according to the ranking results of sub-district ordering processing unit.
The present invention also provides a kind of system that is used to realize the sub-district gravity treatment, and this system comprises the implement device of the sub-district gravity treatment that is arranged in the user terminal, and is arranged at identification process unit and broadcast transmitting element in the base station, wherein,
The identification process unit is used for the identity information in system broadcast message increase base station;
The broadcast transmitting element is used for the described system broadcast message of broadcasting in all cell range of base stations control.
System of the present invention also comprises:
The sluggish parameter of call loss issues processing unit, the sluggish parameter of call loss of each sub-district that is used for determining that the operator maintenance centre provides, and the sluggish parameter of described call loss added in the described system broadcast message, afterwards, by this system broadcast message of broadcast transmission in all cell range of base stations control of the broadcast transmitting element in the base station.
The sluggish parameter of described call loss comprises: with sluggish parameter of base station call loss and/or the sluggish parameter of different base station call loss.
As seen from the above technical solution provided by the invention, the consideration call loss that the present invention proposes influences the implementation of sub-district gravity treatment of the minimizing connection status user terminal call loss of parameter, make when user terminal is in sub-district gravity treatment under the connection status, can preferentially select to be in sub-district under the same base with current area, thereby make can the try one's best paging of response to network of user terminal, increase the call completion rate of user terminal, reduce the equipment percent of call lost of user terminal connection status, reduced user's the Call Waiting time.
Description of drawings
Fig. 1 is the specific implementation process schematic diagram of method of the present invention;
Fig. 2 is the concrete enforcement structural representation of system of the present invention.
Embodiment
Core of the present invention is to carry out obtaining the identity information of base station, place, adjacent sub-district in the cell reselection process at user terminal, and according to the identity information identical sub-district of the preferential selection of the identity information of described base station with base station, user terminal current area place.
The identity information of described base station can be the Base Station Identification of current area, perhaps, identifies the identification information that described adjacent sub-district and current area belong to same base or different base station.
Among the present invention, described preferential selection can comprise first priority selection and two kinds of operations of relative priority selection.Described first priority is selected to be meant as long as there is the adjacent sub-district that is under the same base station, is then only carried out the sub-district gravity treatment in the adjacent sub-district under being in same base station; Described relative priority is selected to be meant when having the adjacent sub-district that is under same base station and the different base station simultaneously, then increase the weight of adjacent sub-district in reuse adoption process that is in accordingly under the same base station, afterwards, sorted in all adjacent sub-districts again, and carry out the sub-district reselection operation according to ranking results, for example, can in the gravity treatment of sub-district, make the adjacent sub-district under the same base station weight in reuse adoption process to obtain increasing by introducing the sluggish parameter of call loss.
For ease of the understanding of the present invention, the specific embodiment of the present invention is elaborated below in conjunction with accompanying drawing.
Realize that to introduce the sluggish parameter of call loss the present invention is an example, the procedure chart of corresponding a specific embodiment of the present invention specifically comprises as shown in Figure 1:
Step 11: determine the sluggish parameter of call loss by the operator maintenance centre, and provide definite sluggish parameter of call loss to the base station;
Step 12: behind the sluggish parameter of call loss that base station acquisition operator maintenance centre sends and the identity information of base station, in the system broadcast message of base station, add the identity information and the sluggish parameter of call loss of base station, and broadcasting comprises the identity information of base station and the system broadcast message of the sluggish parameter of call loss in all cell range of base stations control;
Wherein, the identity information of described base station can be the identification information of base station, perhaps, also can whether be in sign under the same base station with current area for being used to identify corresponding adjacent sub-district, or the like.
Step 13: user terminal judges whether adjacent sub-district belongs to identical base station with current area, if identical, then execution in step 14 after receiving the system broadcast message of the identity information that comprises the base station and the sluggish parameter of call loss, otherwise, execution in step 15;
Step 14: improve this and current area by the sluggish parameter of described call loss and be in the weight of adjacent sub-district in cell reselection process under the different base station, promptly improve corresponding adjacent sub-district selected possibility in cell reselection process;
Be specially: the sluggish parameter of the call loss that user terminal should the neighbour sub-district is incorporated in the sub-district gravity treatment sorting operation, and make and preferentially to select this and current area to be in adjacent sub-district under the same base station, described preferentially being meant with respect to being in adjacent sub-district under the different base station with current area according to ranking results;
Step 15: reduce this and current area by the sluggish parameter of described call loss and be in the weight of adjacent sub-district in cell reselection process under the different base station, promptly reduce corresponding adjacent sub-district selected possibility in cell reselection process;
Be specially: the sluggish parameter of the call loss that user terminal should the neighbour sub-district is incorporated in the sub-district gravity treatment sorting operation, and make when existing and current area when being in adjacent sub-district under the same base station, can preferentially select corresponding and current area to be in adjacent sub-district under the same base station according to ranking results, described preferentially being meant with respect to being in adjacent sub-district under the different base station with current area.
When comprising simultaneously in the candidate cell of sub-district gravity treatment that when being in the adjacent sub-district under the same base station and being in adjacent sub-district under the different base station with current area, described step 14 and step 15 can be carried out simultaneously, also can only carry out one of them step.In a word, the objective of the invention is to realize preferentially to select to be in the adjacent sub-district under the same base station as much as possible when existing simultaneously in the re-selecting cell to be selected in the cell reselection process when being in adjacent sub-district same base station under with the adjacent sub-district that is under the different base station with current area.
Below again to realize that based on the R ranking criteria of UMTS the present invention is that example describes the sorting operation in described step 14 and 15 in detail.
User terminal can be used the result of calculation of the sluggish parameter influence sub-district gravity treatment of call loss ranking criteria in the calculating of R criterion.Concrete processing mode can for: the ordering result of calculation that is in the sub-district under the same base with user terminal is increased, and/or, make the ordering result of calculation minimizing that is in the sub-district different base station under with user terminal.The occurrence that ordering result of calculation increases or reduces can depend on the sluggish parameter value of the call loss that issues in the system broadcast message.
At the R ranking criteria of the sub-district gravity treatment of generally adopting, a kind of account form that using the sluggish parameter value of call loss influences R criterion result of calculation is:
In the LTE system, the sluggish parameter of call loss that is in the sub-district under the same base with user terminal can be with the sluggish parameter Qhyst of base station call loss
N, sameNB, the sluggish parameter of call loss that is in the sub-district under the different base station with user terminal can be the sluggish parameter Qhyst of different base station call loss
N, differNBThat is, when the adjacent sub-district of user terminal and current area are in same base station following time, user terminal adopts Qhyst
N, sameNBAs the sluggish parameter value of call loss; When the adjacent sub-district of user terminal and current area are in different base station following time, user terminal adopts Qhyst
N, differNBAs the sluggish parameter value of call loss.
Among the present invention, the concrete sluggish parameter adjustment cell reselection parameters of the described call loss R that utilizes
nImplementation comprise following several:
(1) if that issue in the system broadcast message is Qhyst
N, sameNB, the R criterion calculating that is in the sub-district of same base in those and current area can add Qhyst so
N, sameNB, can think:
R
s＝Q
meas，s+Qhyst
s+Qoffmbms (5)
R
n＝Q
meas，n-Qoffset
s，n+Qoffmbms+Qhyst
n，sameNB (6)
For example: suppose that current area A belongs to base station 1, its adjacent sub-district B and C belong to base station 1 and base station 2 respectively, and under the identical situation of the signal quality measured values of two adjacent sub-district B and C, the R value that belongs to the adjacent sub-district B of same base with current area can be because Qhyst
N, the sam base stationThe influence of parameter, ordering is before belonging to the adjacent sub-district C of different base station with current area, thereby make adjacent sub-district B become sub-district gravity treatment result, thereby make in the cell reselection process that preferential the selection is in adjacent sub-district under the different base station as the new Serving cell of user terminal with current area under certain condition.
(2) if that issue in the system broadcast message is Qhyst
N, differNB, the R criterion calculating that is in the sub-district of different base station in those and current area can deduct this Qhyst so
N, differNB, can think:
R
s＝Q
meas，s+Qhyst
s+Qoffmbms (7)
R
n＝Q
meas，n-Qoffset
s，n+Qoffmbms-Qhyst
n，differNB (8)
For example: suppose that current area A belongs to base station 1, its adjacent sub-district B and C belong to base station 1 and base station 2 respectively, and under the identical situation of the signal quality measured values of two adjacent sub-district B and C, the R value that belongs to the adjacent sub-district C of different base station with current area can be because Qhyst
N, differNBThe influence of parameter is sorted after adjacent sub-district B, thereby is made adjacent sub-district B become sub-district gravity treatment result.
(3) if the parameter that issues in the system broadcast message comprises described Qhyst simultaneously
N, sameNBValue and Qhyst
N, differNBValue, then can be simultaneously utilize described formula (6) and formula (8) to adjust at the sub-district corresponding district reselecting parameters that is in the sub-district of same base station with current area and is in different base station, and carry out adjacent sub-district according to adjusted result and sort, realize corresponding sub-district reselection operation at last.
In above-mentioned (one), (two) and (three) described processing procedure, formula (6) is respectively according to system broadcast message with formula (8) and issues the sluggish parameter value of different call losses, sub-district gravity treatment ordering is adopted increase and/or is deducted the ranking value of the concrete sort method of the sluggish parameter value of call loss to adjacent sub-district, promptly adjacent sub-district corresponding district reselecting parameters value; Formula (5) and formula (7) are respectively the ranking value to current area.
By the above-mentioned concrete processing procedure that the sub-district gravity treatment is sorted as can be seen, when using the sluggish parameter value of call loss and influence the result of calculation of R criterion, can add the call loss sluggishness parameter value of this sub-district during the R criterion that is in the sub-district of same base with current area calculated; Can deduct the sluggish parameter value of call loss of this sub-district during the R criterion that is in the sub-district of different base station with current area calculated.That is to say in the R criterion of considering the sluggish parameter value of call loss, thereby value added processing is arranged for the sub-district that is in same base with current area, and/or, for the sub-district that is in different base station with current area the processing of depreciation is arranged, to embody the thought that preferred and current area is in the sub-district of same base.
More than influence a kind of account form of R criterion result of calculation for using the sluggish parameter value of call loss, because the R criterion only is a formula, some can be able to be influenced the factor of sub-district gravity treatment, such as, the signal strength signal intensity of sub-district, MBMS PL, and after the factor of HCS etc. quantizes, these quantized values are carried out the result of calculation that specific computing (for example, addition or subtract each other) draws the R criterion, and the highest sub-district of R value is as the result of sub-district gravity treatment.
Promptly, the method of cell reselection that the present invention relates to, also be not limited to above-mentioned to the sluggish parameter value of call loss addition or subtract each other mode, but other factors that can consider according to needs in the situation that specifically is provided with of the sluggish parameter value of call loss and the sub-district gravity treatment take suitable manner to influence the ranking criteria of sub-district gravity treatment.
For example: at the R ranking criteria of the sub-district gravity treatment of generally adopting, the another kind of account form that using the sluggish parameter value of call loss influences R criterion result of calculation is:
In the LTE system, the sluggish parameter of call loss that is in the sub-district under the same base with user terminal can be Qoffset
N, sameNB, the sluggish parameter of call loss that is in the sub-district under the different base station with user terminal can be Qoffset
N, differNBThat is, when the adjacent sub-district of user terminal and current area are in same base station following time, user terminal adopts Qoffset
N, sameNBAs the sluggish parameter value of call loss; When the adjacent sub-district of user terminal and current area are in different base station following time, user terminal adopts Qoffset
N, differNBAs the sluggish parameter value of call loss.
That is to say, can be in network by adjusting Qoffset
N, sameNBAnd Qoffset
N, differNBParameter reaches the purpose that makes terminal can preferentially select the sub-district under the same base.
At this moment, the concrete sluggish parameter adjustment cell reselection parameters of the described call loss R that utilizes
nImplementation comprise following several:
(1) if that issue in the system broadcast message is Qoffset
N, sameNB, be in the R criterion calculating meeting of sub-district of same base at Qoffset in those and current area so
S, nOn multiply by this Qoffset
N, sameNBValue, can think:
R
s＝Q
meas，s+Qoffset
s，n+Qoffmbms (9)
R
n＝Q
meas，n-Qoffset
s，n×Qoffset
n，sameNB+Qoffmbms (10)
For example: suppose that current area A belongs to base station 1, its adjacent sub-district B and C belong to base station 1 and base station 2 respectively, and under the identical situation of the signal quality measured values of two adjacent sub-district B and C, the R value that belongs to the adjacent sub-district B of same base with current area can be because Qoffset
N, sameNBInfluence (Qoffset
N, sameNBCan be for less than 1 any number, such as, Qoffset is set
N, sameNB=0.7), promptly at Qoffset
S, nOn multiply by any number less than 1, be equivalent to increase the R of adjacent sub-district B
nValue, make and belonged to the adjacent sub-district B ordering of same base before belonging to the adjacent sub-district C of different base station with current area with current area, thereby make in the cell reselection process that preferential the selection is in adjacent sub-district under the different base station as the new Serving cell of user terminal with current area under certain condition.
(2) if that issue in the system broadcast message is Qoffset
N, differNB, be in the R criterion calculating meeting of sub-district of different base station at Qoffset in those and current area so
S, nOn multiply by this Qoffset
N, differNBValue, can think:
R
s＝Q
meas，s+Qhyst
s+Qoffmbms (11)
R
n＝Q
meas，n-Qoffset
s，n×Qoffset
n，differNB+Qoffmbms (12)
For example: suppose that current area A belongs to base station 1, its adjacent sub-district B and C belong to base station 1 and base station 2 respectively, and under the identical situation of the signal quality measured values of two adjacent sub-district B and C, the R value that belongs to the adjacent sub-district B of same base with current area can be because Qoffset
N, differNBInfluence (Qoffset
N, differNBCan be for greater than 1 any number, such as, Qoffset is set
N, differNB=1.7), promptly at Qoffset
S, nOn multiply by any number greater than 1, be equivalent to reduce the R of adjacent sub-district B
nValue, make and belonged to the adjacent sub-district B ordering of same base before belonging to the adjacent sub-district C of different base station with current area with current area, thereby make in the cell reselection process that preferential the selection is in adjacent sub-district under the different base station as the new Serving cell of user terminal with current area under certain condition.
(3) if issue Qoffset in the system broadcast message simultaneously
N, sameNBAnd Qoffset
N, differNB, promptly be in the R criterion calculating meeting of sub-district of same base at Qoffset with current area
S, nOn multiply by Qoffset
N, sameNB, simultaneously, be in the R criterion calculating meeting of sub-district of different base station at Qoffset with current area
S, nOn multiply by Qoffset
N, differNB, promptly to the sorting operation of adjacent sub-district the time, carry out the operation of formula (9), formula (10), formula (11) and formula (12) simultaneously.
In above-mentioned processing procedure, formula (10) is respectively according to system broadcast message with formula (12) and issues the sluggish parameter value of different call losses, the ranking value of the concrete sort method of the sluggish parameter value of call loss that multiply by this neighbour sub-district to adjacent sub-district, promptly adjacent sub-district corresponding district reselecting parameters are adopted in sub-district gravity treatment ordering; Formula (9) and formula (11) are respectively the ranking value to current area.
By above-mentioned concrete processing procedure to sub-district gravity treatment ordering as can be seen, when using the sluggish parameter value of call loss and influence the result of calculation of R criterion, to being in Qoffset in the R criterion calculating of sub-district of same base with current area
S, nOn multiply by the sluggish parameter value Qoffset of same base station call loss of this sub-district
N, sameNBQoffset during the R criterion that is in the sub-district of different base station with current area calculated
S, nOn multiply by the sluggish parameter value Qoffset of different base station call loss of this sub-district
N, differNB, if having two parameters, then Qoffset simultaneously
N, differNBParameter value need be greater than Qoffset
N, sameNBParameter value, such as, Qoffset is set
N, sameNB=1.1, Qoffset
N, differNB=1.2.Thereby make realization of the present invention can embody the thought that preferred and current area is in the sub-district of same base.
In addition, specifically can will describe with two concrete examples below among the present invention by adopting diverse ways to determine the identity information of described base station.
Definite mode of the identity information of first kind of base station can for:
At first, in the system broadcast message of base station, add the id (sign) of current base station, and in all cell range of this base stations control, broadcast the system broadcast message that comprises base station id.User terminal carries out the measured value that test constantly obtains adjacent cell signal quality to adjacent cell signal, simultaneously, can monitor the system broadcast message of adjacent sub-district, promptly, user terminal can read the system broadcast message of current area and the system broadcast message of adjacent sub-district, obtain the base station id information of current area and adjacent sub-district, this base station id value i.e. the identity information of the base station in the embodiment for this reason.
The ordering of carrying out according to the identity information of base station is treated to:
User terminal compares according to the id of the base station at the place, adjacent sub-district that reads and the base station id of sub-district, own place, whether use calculatings of sorting of the sluggish parameter of the call loss that from system broadcast message, obtains according to result's decision relatively, and the calculating of sorting of the call loss sluggishness parameter of using the still different base station of same base.When the base station id of the id of the base station at place, adjacent sub-district and sub-district, own place belongs in the scope of same base station, user terminal to adjacent sub-district according to the processing of sorting of the ordering processing mode of the sluggish parameter of predefined call loss based on same base, for example, can in ordering result of calculation (being cell reselection parameters), increase this sluggishness parameter Qhyst
N, sameNBPerhaps at parameter Qoffset
S, nOn multiply by this sluggishness parameter Qoffset
N, sameNBWhen the base station id of the id of the base station at place, adjacent sub-district and sub-district, own place does not belong in the scope of same base station, user terminal to adjacent sub-district according to the processing of sorting of the ordering processing mode of the sluggish parameter of predefined call loss based on different base station, for example, can in ordering result of calculation (being cell reselection parameters), deduct this sluggishness parameter Qhyst
N, differNBPerhaps at parameter Qoffset
S, nOn multiply by this sluggishness parameter Qoffset
N, differNB
Definite mode of the identity information of second kind of base station can for:
At first, the base station is according to Neighboring Cell List that gateway disposed, before the sending system broadcast, judge that whether current area belongs to identical base station with current area with the adjacent sub-district that is disposed, and afterwards, indicates this judged result with specific sign in the Neighboring Cell List of the system broadcast message that issues, such as, can adopt sign 1 this neighbour sub-district of expression to belong to different base stations, represent that with sign 0 this neighbour sub-district belongs to identical base station with current area with current area, or the like.
The ordering of carrying out according to the identity information of base station is treated to:
By user terminal the identification information in the Neighboring Cell List that receives is judged, promptly determined whether using the calculating of sorting of the sluggish parameter of the call loss that from system broadcast message, obtains with the sluggish parameter of this identification information and call loss.When the Base Station Identification that user terminal is received represents that adjacent sub-district and current area belong in the scope of same base station, user terminal to adjacent sub-district according to the processing of sorting of the ordering processing mode of the sluggish parameter of predefined call loss based on same base, for example, in ordering result of calculation (being cell reselection parameters), increase this sluggishness parameter Qhyst
N, sameNBPerhaps at parameter Qoffset
S, nOn multiply by this sluggishness parameter Qoffset
N, sameNBWhen the Base Station Identification that user terminal is received represents that adjacent sub-district and current area do not belong in the scope of same base station, user terminal to adjacent sub-district according to the processing of sorting of the ordering processing mode of the sluggish parameter of predefined call loss based on different base station, for example, in ordering result of calculation (cell reselection parameters), deduct this sluggishness parameter Qhyst
N, differNBPerhaps at parameter Qoffset
S, nOn multiply by this sluggishness parameter Qoffset
N, differNB
An embodiment of the system that the present invention relates to specifically comprises as shown in Figure 2:
Be arranged at the implement device of the sub-district gravity treatment in the user terminal, and be arranged at identification process unit and broadcast transmission processing unit in the base station, wherein,
Described identification process unit is used for increasing in the system broadcast message that need broadcast the identity information of base station in all cell range under the base station;
Described broadcast transmitting element is used for the described system broadcast message of broadcasting in all cell range of base stations control.
And system of the present invention also comprises alternatively:
The sluggish parameter of call loss issues processing unit, the sluggish parameter of call loss of each sub-district that is used for determining that the operator maintenance centre provides, and the sluggish parameter of described call loss added in the described system broadcast message, send the sluggish parameter of described call loss by the broadcast transmitting element, afterwards, this system broadcast message of broadcast transmission in all cell range of base stations control; Wherein, the sluggish parameter of described call loss comprises: with sluggish parameter of base station call loss and/or the sluggish parameter of different base station call loss.
The implement device of sub-district of the present invention gravity treatment is arranged in the user terminal, and described device comprises:
Base station identity information determining unit
This unit is used for determining the identity information of base station, place, adjacent sub-district, and offers the cell reselection process unit, and described base station identity information determining unit comprises:
The broadcast receiving element is used to receive the broadcast that includes base station identity information that base station side is sent by the broadcast transmitting element, and offers the base station identity recognition unit;
The base station identity recognition unit is used for determining the identity information of base station, place, adjacent sub-district according to the information that described broadcast receiving element provides, and offers the cell reselection process unit.
The cell reselection process unit
This unit is used for according to the identity information identical sub-district of the preferential selection of the identity information of described base station with base station, user terminal current area place.
And described device can also comprise:
The sluggish parameter receiving element of call loss is used for receiving the sluggish parameter information of call loss that base station that broadcast carries sends by the broadcast receiving element, and offers the cell reselection process unit;
And described cell reselection process unit comprises:
The judgment processing unit, whether adjacent sub-district is under the same base station with sub-district, the current place of user terminal, and judged result is offered reselection operation unit, sub-district;
Reselection operation unit, sub-district, be used for judged result according to the judgment processing unit, utilize the sluggish parameter adjustment of described call loss preferably to be in adjacent sub-district under the same base station with sub-district, the current place of user terminal, reselection operation unit, described sub-district specifically comprises following three processing units:
The cell reselection parameters adjustment unit, be used for sub-district, the current place of user terminal is in the sluggish parameter of call loss that sub-district corresponding district reselecting parameters under the same base station increases this sub-district, and/or, sub-district, the current place of user terminal is in the sluggish parameter of call loss that sub-district corresponding district reselecting parameters under the different base station deducts this sub-district;
Ordering processing unit in sub-district is used for according to the processing of sorting of adjusted each sub-district corresponding district reselecting parameters;
The cell selecting unit is used for carrying out the sub-district gravity treatment according to the ranking results of sub-district ordering processing unit.
In sum, the present invention is in the reselection criterion of sub-district, and the percent of call lost of the user terminal when having considered connection status has been introduced the identity information of base station and according to the sluggish parameter of the call loss of call loss situation.Make in the LTE system, the ordering that user terminal can influence user terminal current area and adjacent sub-district according to the identity information and the sluggish parameter of call loss of base station, make the performed sub-district gravity treatment of user terminal as much as possible gravity treatment to the sub-district that belongs under the same base station, thereby make can the try one's best paging of response to network of user terminal, increase the call completion rate of user terminal, reduced the equipment percent of call lost of user terminal connection status.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (13)
1. the implementation method of a sub-district gravity treatment is characterized in that, comprising:
User terminal obtains the identity information of base station, place, adjacent sub-district, and according to the identity information identical sub-district of the preferential selection of the identity information of described base station with base station, user terminal current area place, described preferential selection comprises:
Be in adjacent sub-district same base station under if exist, then directly carry out the sub-district reselection operation being in the adjacent sub-district under the same base station with current area with current area;
Perhaps, after the weight that is in the adjacent sub-district under the same base station with current area and/or is in the adjacent sub-district under the different base station adjusted, carry out the sub-district reselection operation in the adjacent sub-district after adjusting weight, described weight is determined by the sluggish parameter of call loss.
2. the method for claim 1 is characterized in that, described identity information comprises:
The Base Station Identification of current area; Perhaps,
Identify described adjacent sub-district and current area and belong to the sign of identical or different base station.
3. the method for claim 1 is characterized in that, the described operation that the weight of adjacent sub-district is adjusted comprises:
Increase and current area are in the weight of adjacent sub-district in cell reselection process under the same base station;
And/or,
Minimizing and current area are in the weight of adjacent sub-district in cell reselection process under the different base station.
4. as each described method of claim 1 to 3, it is characterized in that described method also comprises:
To determine that according to required call loss situation the sluggish parameter of call loss of each sub-district of base station offers each base station by the operator maintenance centre, and increase the identity information of relevant base station by each base station after, be broadcast to user terminal by system broadcast message.
5. method as claimed in claim 4 is characterized in that, the sluggish parameter of described call loss comprises: with sluggish parameter of base station call loss and/or the sluggish parameter of different base station call loss.
6. method as claimed in claim 5 is characterized in that, the described operation that the weight of adjacent sub-district is adjusted specifically comprises:
After described user terminal is received described broadcast, judge according to the identity information of wherein base station whether adjacent sub-district belongs to same base station with current area;
To carry out handling with the cell reselection parameters that current area is in the adjacent sub-district under the same base station according to judged result according to the increase of the sluggish parameter of call loss of this sub-district; And/or, will carry out handling with the cell reselection parameters that current area is in the adjacent sub-district under the different base station according to the minimizing of the corresponding sluggish parameter of this sub-district call loss.
7. method as claimed in claim 6 is characterized in that, described increase is handled, and/or described minimizing is handled and specifically comprised:
To increase the sluggish parameter of same base station call loss that network side issues with the cell reselection parameters that current area is in the adjacent sub-district under the same base station according to judged result; And/or, will deduct the sluggish parameter of different base station call loss that network side issues with the cell reselection parameters that current area is in the adjacent sub-district under the different base station;
Perhaps,
To multiply by the sluggish parameter of same base station call loss that network side issues with the adjacent sub-district corresponding district reselecting parameters that current area is under the same base station according to judged result; And/or, will multiply by the sluggish parameter of different base station call loss that network side issues with the adjacent sub-district corresponding district reselecting parameters that current area is under the different base station.
8. the implement device of a sub-district gravity treatment is characterized in that, this device is arranged in the user terminal, and described device comprises:
Base station identity information determining unit is used for determining the identity information of base station, place, adjacent sub-district, and offers the cell reselection process unit;
The cell reselection process unit is used for according to the identity information identical sub-district of the preferential selection of the identity information of described base station with base station, user terminal current area place;
The sluggish parameter receiving element of call loss is used to receive the sluggish parameter information of call loss that the base station sends, and offers the cell reselection process unit;
Described cell reselection process unit comprises:
The judgment processing unit is used to judge and determines that whether adjacent sub-district is under the same base station with sub-district, the current place of user terminal, and judged result is offered reselection operation unit, sub-district;
Reselection operation unit, sub-district is used for the judged result according to the judgment processing unit, utilizes the sluggish parameter adjustment of described call loss preferably to be in adjacent sub-district under the same base station with sub-district, the current place of user terminal.
9. device as claimed in claim 8 is characterized in that, described base station identity information determining unit comprises:
The broadcast receiving element is used to receive the broadcast that includes base station identity information that send the base station, and the sluggish parameter information of call loss that carries in the broadcast is sent to the sluggish parameter receiving element of call loss.And the broadcast that will contain base station identity information offers the base station identity recognition unit;
The base station identity recognition unit is used for determining the identity information of base station, place, adjacent sub-district according to the information that described broadcast receiving element provides, and offers the cell reselection process unit.
10. device as claimed in claim 9 is characterized in that, reselection operation unit, described sub-district specifically comprises:
The cell reselection parameters adjustment unit, being used for that sub-district, the current place of user terminal is in sub-district corresponding district reselecting parameters under the same base station carries out handling at the increase of the sluggish parameter of call loss of this sub-district, and/or, sub-district, the current place of user terminal is in sub-district corresponding district reselecting parameters under the different base station carries out handling at the minimizing of the sluggish parameter of call loss of this sub-district;
Ordering processing unit in sub-district is used for according to the processing of sorting of adjusted each sub-district corresponding district reselecting parameters;
The cell selecting unit is used for carrying out the sub-district gravity treatment according to the ranking results of sub-district ordering processing unit.
11. system that is used to realize the sub-district gravity treatment, it is characterized in that, comprise each described implement device that is arranged at the sub-district gravity treatment in the user terminal of claim 8-10, and be arranged at identification process unit and broadcast transmitting element in the base station, wherein
The identification process unit is used for the identity information in system broadcast message increase base station;
The broadcast transmitting element is used for the described system broadcast message of broadcasting in all cell range of base stations control.
12. system as claimed in claim 11 is characterized in that, described system also comprises:
The sluggish parameter of call loss issues processing unit, the sluggish parameter of call loss of each sub-district that is used for determining that the operator maintenance centre provides, and the sluggish parameter of described call loss added in the described system broadcast message, afterwards, by this system broadcast message of broadcast transmission in all cell range of base stations control of the broadcast transmitting element in the base station.
13. system as claimed in claim 12 is characterized in that, the sluggish parameter of described call loss comprises: with sluggish parameter of base station call loss and/or the sluggish parameter of different base station call loss.
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| CN101557619B (en) * | 2008-04-09 | 2011-06-22 | 华为技术有限公司 | Method, terminal and system for subdistrict reelection |
| US8538425B2 (en) * | 2008-07-01 | 2013-09-17 | Qualcomm Incorporated | Apparatus and method for improving mobile terminated cell setup performance during inter-frequency cell reselection |
| CN101772118B (en) * | 2008-12-31 | 2013-08-07 | 华为技术有限公司 | Cell reselection method and cell reselection device |
| CN101772055B (en) * | 2009-01-05 | 2012-08-15 | 中国移动通信集团公司 | Adjustment method of cell reselection parameter and device thereof |
| CN102111787B (en) * | 2009-12-28 | 2015-01-07 | 重庆重邮信科通信技术有限公司 | Method for reselecting mobile terminal cell |
| CN102131256A (en) * | 2010-01-13 | 2011-07-20 | 中兴通讯股份有限公司 | Method and base station for implementing cell reselection parameter negotiation |
| CN102158907B (en) | 2010-02-12 | 2013-01-23 | 华为技术有限公司 | Priority service processing method, device and system |
| CN102892160A (en) * | 2011-07-18 | 2013-01-23 | 中兴通讯股份有限公司 | Selecting Method, device and system for rebuilding cells in LTE (long term evolution) system |
| CN103052122B (en) | 2011-10-13 | 2016-03-30 | 华为技术有限公司 | The method of cell reselection, equipment and system |
| US9137718B2 (en) * | 2012-01-12 | 2015-09-15 | Qualcomm Incorporated | Cell reselection based on multimedia broadcast multicast service (MBMS) metrics |
| CN102740389B (en) * | 2012-06-28 | 2015-09-09 | 华为技术有限公司 | A kind of residence reselecting, equipment and system supporting multi-media broadcasting service |
| CN111226461A (en) * | 2018-01-19 | 2020-06-02 | Oppo广东移动通信有限公司 | Cell reselection method, device and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264997A (en) * | 2000-03-02 | 2000-08-30 | 上海大唐移动通信设备有限公司 | Switching method based on native region priority for mobile communication system |
| CN1377151A (en) * | 2001-03-22 | 2002-10-30 | 深圳市中兴通讯股份有限公司 | Resource allocation method on switching for CDMa base station system |
| CN1787685A (en) * | 2004-12-09 | 2006-06-14 | 华为技术有限公司 | Method for realizing hard switching |
-
2006
- 2006-08-21 CN CN2006101115309A patent/CN101132614B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264997A (en) * | 2000-03-02 | 2000-08-30 | 上海大唐移动通信设备有限公司 | Switching method based on native region priority for mobile communication system |
| CN1377151A (en) * | 2001-03-22 | 2002-10-30 | 深圳市中兴通讯股份有限公司 | Resource allocation method on switching for CDMa base station system |
| CN1787685A (en) * | 2004-12-09 | 2006-06-14 | 华为技术有限公司 | Method for realizing hard switching |
Non-Patent Citations (1)
| Title |
|---|
| 全文. |
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