CN102695188A - Automatic neighbor relation (ANR) measurement method and apparatus thereof - Google Patents
Automatic neighbor relation (ANR) measurement method and apparatus thereof Download PDFInfo
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Abstract
The invention discloses an automatic neighbor relation (ANR) measurement method and an apparatus thereof. The method and the apparatus are used to select appropriate user equipment (UE) to carry out cell global identity (CGI) measurement. Therefore, under the condition that a QoS feeling degree and network performance are not affected, an ANR measurement success probability can be increased. The ANR measurement method provided in the invention comprises the following steps: determining the UE which satisfies a CGI measurement condition as target UE; sending neighbor CGI measurement control information to the target UE; updating a neighbor relation table through the neighbor CGI and a neighbor physical cell identity (PCI) reported by the target UE.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of Automatic Neighboring Relation (AutomaticNeighbor Relation, ANR) method of measurement and device.
Background technology
(Automatic Neighbor Relation ANR) is self-organizing self-optimizing network (Self-Organizing and Self-Optimization Network, SON) critical function of technology to Automatic Neighboring Relation.Different with traditional main dependence network engineers according to the mode that the on-site land survey situation is configured and adjusts; The introducing of Automatic Neighboring Relation function; Can trigger the base station and open measurement according to the statistics of relevant KPI (Key PerformanceIndicators) in the network, collect data; Generate alarm and handle suggestion, optimize neighboring BS relationship.The pilot process of this processing carries out automatically, therefore can greatly reduce human cost.
Automatic Neighboring Relation ANR function is by subscriber equipment (User Equipment, UE) the auxiliary realization.Referring to Fig. 1; ANR of the prior art measures flow process and comprises: UE is with detected adjacent area Physical Cell Identifier (Physical Cell Identity; PCI) through measurement report report network (Evolved UniversalTerrestrial Radio Access Network, E-UTRAN); E-UTRAN issues report CGI measurement configuration, comprising the PCI of Target cell; UE carries out according to the measurement configuration of service cell eNB (E-UTRAN NodeB) and measures, obtain the adjacent area global cell identity (Cell Global Identity, CGI) and report eNB.ENB is with this adjacent area sign (PCI); And the corresponding relation of PCI and CGI adds neighborhood region correlation chart (Neighbor Relation Table to; NRT) in; Be used to optimize the network neighboring BS relationship, guarantee that the UE of the service boundaries in the sub-district can in time switch to the best sub-district of signal, to guarantee the performance of speech quality and whole net.
But, if wherein UE is in the measuring process of carrying out adjacent area global cell identity (CGI), take place Radio Link Failure (Radio Link Failure RLF), perhaps switches, perhaps owing to move away from adjacent area to be measured, will cause CGI to measure failure.If can't obtain correct, complete neighboring BS relationship later through long-time repeatedly the measurement, will cause handover success rate to descend, can not guarantee that the continuity of network covers.
In addition, UE can not processing service data in carrying out adjacent area global cell identity (CGI) measuring process, also can traffic affecting service quality (QoS) susceptibility.
Summary of the invention
The embodiment of the invention provides a kind of ANR method of measurement and device, measures in order to select suitable UE to carry out CGI, thereby on the basis that does not influence QoS susceptibility and network performance, improves ANR and measure the probability of success.
A kind of ANR method of measurement that the embodiment of the invention provides comprises:
UE with satisfying global cell identity CGI measuring condition confirms as object UE;
Send adjacent area CGI measuring control information to object UE;
Adjacent area CGI and adjacent area Physical Cell Identifier PCI through object UE reports upgrade neighborhood region correlation chart.
A kind of ANR measurement mechanism that the embodiment of the invention provides comprises:
Confirm the object UE unit, be used for the UE that satisfies global cell identity CGI measuring condition is confirmed as object UE;
The control information transmitting element is used for sending adjacent area CGI measuring control information to object UE;
The neighborhood region correlation chart maintenance unit is used for the adjacent area CGI and the adjacent area Physical Cell Identifier PCI that report through object UE, upgrades neighborhood region correlation chart.
The embodiment of the invention, the UE with satisfying global cell identity CGI measuring condition confirms as object UE; Send adjacent area CGI measuring control information to object UE; The adjacent area CGI and the adjacent area Physical Cell Identifier PCI that report through object UE; Upgrade neighborhood region correlation chart, thereby, can the regular traffic of UE not impacted through selecting suitable UE to measure adjacent area CGI; As long as and have a UE can successfully measure the CGI of adjacent area; Whole ANR measures successfully, thereby on the basis that does not influence QoS susceptibility and network performance, has improved ANR and measured the probability of success.
Description of drawings
The schematic flow sheet that Fig. 1 measures for existing ANR;
A kind of ANR method of measurement sketch map that Fig. 2 provides for the embodiment of the invention;
A kind of schematic flow sheet of in the ANR measuring process, selecting the UE of execution CGI measurement that Fig. 3 provides for the embodiment of the invention;
The structural representation of a kind of ANR measurement mechanism that Fig. 4 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of ANR method of measurement and device, measures in order to select suitable UE to carry out CGI, thereby on the basis that does not influence QoS susceptibility and network performance, improves ANR and measure the probability of success.
The embodiment of the invention issues adjacent area CGI measuring control information through selecting all suitable UE in the sub-district to these UE simultaneously, reduces ANR as far as possible and measures the bad impression that implementation is brought to the user, increases and measures the probability of success.
Referring to Fig. 2, a kind of ANR method of measurement that the embodiment of the invention provides comprises step:
S101, will satisfy the UE of global cell identity CGI measuring condition, confirm as object UE;
S102, send adjacent area CGI measuring control information to object UE;
S103, the adjacent area CGI and the adjacent area Physical Cell Identifier PCI that report through object UE upgrade neighborhood region correlation chart.The corresponding relation that is about to the Physical Cell Identifier PCI of adjacent area CGI that object UE reports and this adjacent area adds in the neighborhood region correlation chart.
Preferably, said CGI measuring condition comprises:
UE possesses the ANR measurement capability.
Wherein, said possess the ANR measurement capability, promptly can carry out ANR and measure.
Preferably, said CGI measuring condition also comprises:
UE possesses the discontinuous reception of long period (long DRX) configuration.
Wherein, said possess long DRX configuration, i.e. the signaling of listens for network side in special time period, and other times then are in resting state.That is to say, in the embodiment of the invention, require UE being in the time period of resting state, carry out CGI and measure.
Preferably, said CGI measuring condition also comprises:
UE is in the time span of resting state greater than preset threshold value.
Wherein, said preset threshold value can be provided with according to actual needs, generally is not less than 150 milliseconds (ms), promptly for the UE of the time span that is in resting state greater than 150 milliseconds (ms), can carry out CGI and measure.
Preferably, said CGI measuring condition also comprises:
UE is the edge UE in the Serving cell.
Wherein, said edge UE promptly is positioned at the UE at Serving cell edge, particularly, can whether trigger A3 or A5 incident through judging UE, confirms whether UE is the edge UE in the Serving cell.
That is to say that object UE preferably satisfies following four conditions simultaneously:
Condition one: possess the ANR measurement capability.
Condition two: possess the discontinuous reception of long period (longDRX) configuration.
Condition three: the time span that is in resting state is greater than preset threshold value.
Condition four: be the edge UE in the Serving cell.
Provide an explanation of selecting the specific embodiment of UE below.
Referring to Fig. 3, a kind of method of in the ANR measuring process, selecting the UE of execution CGI measurement that the embodiment of the invention provides specifically comprises step:
All UE in S201, the traversal Serving cell.
All possess the UE of the discontinuous reception of long period (long DRX, Discontinuous Reception) configuration in S202, the selection Serving cell, charge to set A.
S203, according to the DRX parameter configuration of UE in the set A, the UE that satisfies following relational expression is screened, charge to set B:
longDRX-Cycle-onDuration?Timer-drx-Retransmission?Timer＞MinDRXCycle
Wherein, longDRX-Cycle, onDuration Timer and drx-RetransmissionTimer all belong to the canonical parameter in the DRX parameter configuration.LongDRX-Cycle representes the DRX long period; OnDurationTimer representes that UE keeps the time that wakes at every turn after DRX wakes up; UE during this period of time searches for PDCCH (Physical Downlink Control Channel), and drx-RetransmissionTimer representes that the UE expection receives the needed time of descending re-transmission, therefore; (longDRX-Cycle-onDuration Timer-drx-RetransmissionTimer) resulting value, expression UE is in the time span of resting state.
MinDRXCycle is the threshold value of embodiment of the invention definition, and in the embodiment of the invention, the time span that will be in resting state is greater than this threshold value, as the condition of the UE that selects execution CGI to measure.The value of specified threshold MinDRXCycle is not less than 150 milliseconds (ms) in the embodiment of the invention, and the value of this threshold value also can be provided with according to actual needs certainly.
Possess the UE of ANR measurement capability in S204, the selection Serving cell, charge to set C.
The judgment condition of ANR measurement capability is: whether corresponding bits (bit) position of judging featureGroupIndicators among the IE UE-EUTRA-Capability is 1.Wherein, UE-EUTRA-Capability has comprised the various wireless access capability parameters of UE, this cell is when UE initially sets up RRC link, is included in and reports network in " UECapabilityInformation " message.FeatureGroupIndicators is character string that length is 32bit among the UE-EUTRA-Capability, has shown the support situation of UE to various functions, and corresponding bit position is 1, shows that then UE supports this function.
For the UE that possesses the ANR measurement capability, specifically, for common frequency measurement, requiring the 5th bit position is 1, and the 17th bit position is 1; For different-frequency measure, requiring the 5th bit position is 1, and the 18th bit position is 1; For isosystem measurement, requiring the 5th bit position is 1, and the 19th bit position is 1.
Edge customer in S205, the selection Serving cell is charged to set D.
Wherein, the judgment condition of edge customer is: UE triggers A3 or A5 gets into (Enter) incident.This incident under the situation that service cell eNB ANR function is opened, UE opens when initially inserting, the ANR function is closed just and is closed.
For example: if at lasting 256ms in the time; The reference signal power of the adjacent area that UE receives (Reference Signal Receive Power; RSRP) deduct the difference of the reference signal power gained of the Serving cell that UE receives; Greater than-3dB, explain that then UE has triggered the A3 incident, this UE is the edge customer in the Serving cell.
Perhaps, if the signal strength signal intensity of the Serving cell of UE is less than first threshold value, the signal strength signal intensity of the adjacent area of UE explains then that greater than second threshold value UE has triggered the A5 incident, and this UE is the edge customer in the Serving cell.Wherein, the setting of first threshold value and second threshold value can be decided as the case may be.For example: if at lasting 160ms in the time, the Serving cell reference signal power that UE receives is less than-100dBm, and the adjacent area reference signal power that receives of UE explains then that greater than-105dBm UE has triggered the A5 incident, and this UE is the edge customer in the Serving cell.
S206, selection appear at the UE among set B, C, the D simultaneously, charge to set E.
S207, judge whether set E is empty, if, execution in step S208 then; Otherwise, execution in step S209.
S208, if set E be empty, reselect suitable UE after service cell eNB random wait a period of time and carry out measurement.For example, the said random wait time can produce in the 10s scope at 100ms at random.
S209, if set E non-NULL issues adjacent area CGI measuring control information for all UE among the set E, i.e. the measurement configuration of " reportCGI " purpose simultaneously; And, the PCI of " cellsForWhichToReportCGI " value of measuring object for target to be measured adjacent area is set.
More than generate each step of set B, C, D, not necessarily sequencing will be arranged.
Provide the explanation of several specific embodiments below.
Embodiment 1:
Suppose adjacent area to be measured and Serving cell with frequently, MinDRXCycle=200ms judges that the A3 incident thresholding of edge customer is-3dB, and duration T imeToTrigger is 256ms, and Serving cell is current always to have 10 UE, all is in the chain of command stable state.
The detailed process of confirming object UE is following:
Selection possesses the UE of long DRX configuration, and these UE are shown in following table 1:
Table 1
Wherein, psf is PDCCH SubFrame, psf20 for example, the number of expression PDCCH SubFrame.
Calculate the corresponding longDRX-Cycle-onDurationTimer-drx-RetransmissionTimer of each UE respectively, obtain:
UE1：640-40-8＝592ms
UE2：320-40-8＝272ms
UE3：160-20-6＝134ms
UE4：256-20-6＝230ms
Wherein, the value of the longDRX-Cycle-onDurationTimer-drx-RetransmissionTimer of UE1, UE2, UE4 correspondence all greater than 200ms, satisfies condition.
Inquiry UE ability information, selection possesses the UE of ANR measurement capability.For common frequency measurement, 5bit position and the 17bit position of inquiry featureGroupIndicators.The ability information of supposing to inquire UE is shown in following table 2:
Table 2
Then selection result is UE1, UE2, UE3 and UE4.
Select to trigger the UE of A3 incident, be assumed to be UE1 and UE4.
Comprehensive above-mentioned selection result confirms that UE1 and UE4 satisfy all conditions, for being fit to carry out the UE that homogeneous-frequency adjacent-domain CGI measures, therefore issues the measurement configuration of " reportCGI " purpose to UE1 and UE4.
Embodiment 2:
Suppose that adjacent area to be measured is the alien frequencies adjacent area of Serving cell, MinDRXCycle=200ms judges that the A3 incident thresholding of edge customer is-6, and duration T imeToTrigger is 256ms, and Serving cell is current always to have 8 UE, all is in the chain of command stable state.
The detailed process of confirming object UE is following:
Selection possesses the UE of long DRX configuration, and is as shown in table 3:
Table 3
Calculate the corresponding longDRX-Cycle-onDurationTimer-drx-RetransmissionTimer of each UE respectively, obtain:
UE1：640-60-8＝572ms
UE2：320-40-8＝272ms
UE3：256-20-6＝230ms
UE4：160-20-4＝136ms
Wherein the value of the longDRX-Cycle-onDurationTimer-drx-RetransmissionTimer of UE1, UE2, UE3 correspondence all greater than 200ms, satisfies condition.
Inquiry UE ability information, selection possesses the UE of ANR measurement capability.For different-frequency measure, the inquiry featureGroupIndicators the 5th, the 18bit position.The ability information of supposing to inquire UE is shown in following table 4:
| Index?Of?Indicator(bit?number) | 5 | 18 |
| UE1 | 1 | 1 |
| UE2 | 1 | 1 |
| UE3 | 1 | 1 |
| UE4 | 1 | 1 |
| UE5 | 0 | 0 |
| UE6 | 0 | 0 |
| UE7 | 0 | 0 |
| UE8 | 0 | 0 |
Table 4
Then selection result is UE1, UE2, UE3 and UE4.
Select to trigger the UE of A3 incident, be assumed to be UE1 and UE4.
Comprehensive above-mentioned selection result, UE1 satisfies all conditions, for being fit to carry out the UE that homogeneous-frequency adjacent-domain CGI measures, therefore issues the measurement configuration of " reportCGI " purpose to UE1.
Embodiment 3:
Suppose adjacent area to be measured and Serving cell with frequently, MinDRXCycle=200ms judges that the A3 incident thresholding of edge customer is-6, and duration T imeToTrigger is 256ms, and Serving cell is current always to have 8 UE.
The detailed process of confirming object UE is following:
Selection possesses the UE of long DRX configuration, and is as shown in table 5:
Table 5
Calculate the corresponding longDRX-Cycle-onDurationTimer-drx-RetransmissionTimer of each UE respectively, obtain:
UE1：640-60-8＝572ms
UE2：320-40-8＝272ms
UE3：256-20-6＝230ms
UE4：160-20-4＝136ms
Wherein the value of the longDRX-Cycle-onDurationTimer-drx-RetransmissionTimer of UE1, UE2, UE3 correspondence all greater than 200ms, satisfies condition.
Inquiry UE ability information, selection possesses the UE of ANR measurement capability.For common frequency measurement, the inquiry featureGroupIndicators the 5th, the 17bit position.The ability information of supposing UE is shown in following table 6:
| Index?Of?Indicator(bit?number) | 5 | 17 |
| UE1 | 1 | 1 |
| UE2 | 1 | 1 |
| UE3 | 1 | 1 |
| UE4 | 1 | 1 |
| UE5 | 0 | 0 |
| UE6 | 0 | 0 |
| UE7 | 0 | 0 |
| UE8 | 0 | 0 |
Table 6
Then selection result is UE1, UE2, UE3, UE4.
Select to trigger the UE of A3 incident, finding does not have.
Therefore, above-mentioned selection result does not find suitable UE, and then random wait repeats above step after a period of time, promptly reselects UE.
Referring to Fig. 4, a kind of Automatic Neighboring Relation ANR measurement mechanism that the embodiment of the invention provides comprises:
Confirm object UE unit 101, be used for the UE that satisfies global cell identity CGI measuring condition is confirmed as object UE;
Control information transmitting element 102 is used for sending adjacent area CGI measuring control information to object UE;
Neighborhood region correlation chart maintenance unit 103 is used for the adjacent area CGI and the adjacent area Physical Cell Identifier PCI that report through object UE, upgrades neighborhood region correlation chart.
Preferably, said definite object UE unit 101 will possess the UE of ANR measurement capability, confirm as object UE.
Preferably, said definite object UE unit 101 will possess the ANR measurement capability, and possess the UE of discontinuous reception DRX configuration, confirm as object UE.
Preferably, said definite object UE unit 101 will possess the ANR measurement capability, possess discontinuous reception DRX configuration, and be in the UE of the time span of resting state greater than preset threshold value, confirm as object UE.
Preferably, said definite object UE unit 101, the time span that will possess the ANR measurement capability, possess discontinuous reception DRX configuration, is in resting state is greater than preset threshold value, and is the UE of the edge UE in the Serving cell, confirms as object UE.
Preferably, the Automatic Neighboring Relation ANR measurement mechanism that the embodiment of the invention provides can be the eNB of network side.
In sum, the embodiment of the invention, the UE with satisfying global cell identity CGI measuring condition confirms as object UE; Send adjacent area CGI measuring control information to object UE; The adjacent area CGI and the adjacent area Physical Cell Identifier PCI that report through object UE; Upgrade neighborhood region correlation chart, thereby, can the regular traffic of UE not impacted through selecting suitable UE to measure adjacent area CGI; As long as and have a UE can successfully measure the CGI of adjacent area; Whole ANR measures successfully, thereby on the basis that does not influence QoS susceptibility and network performance, has improved ANR and measured the probability of success.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. Automatic Neighboring Relation ANR method of measurement is characterized in that this method comprises:
UE with satisfying global cell identity CGI measuring condition confirms as object UE;
Send adjacent area CGI measuring control information to object UE;
Adjacent area CGI and adjacent area Physical Cell Identifier PCI through object UE reports upgrade neighborhood region correlation chart.
2. method according to claim 1 is characterized in that, said CGI measuring condition comprises: UE possesses the ANR measurement capability.
3. method according to claim 2 is characterized in that, said CGI measuring condition also comprises:
UE possesses the discontinuous reception of long period long DRX configuration.
4. method according to claim 3 is characterized in that, said CGI measuring condition also comprises:
UE is in the time span of resting state greater than preset threshold value.
5. method according to claim 4 is characterized in that, said CGI measuring condition also comprises:
UE is the edge UE in the Serving cell.
6. Automatic Neighboring Relation ANR measurement mechanism is characterized in that this device comprises:
Confirm the object UE unit, be used for the UE that satisfies global cell identity CGI measuring condition is confirmed as object UE;
The control information transmitting element is used for sending adjacent area CGI measuring control information to object UE;
The neighborhood region correlation chart maintenance unit is used for the adjacent area CGI and the adjacent area Physical Cell Identifier PCI that report through object UE, upgrades neighborhood region correlation chart.
7. device according to claim 6 is characterized in that, said definite object UE unit will possess the UE of ANR measurement capability, confirm as object UE.
8. device according to claim 7 is characterized in that, said definite object UE unit will possess the ANR measurement capability, and possesses the UE of the discontinuous reception of long period long DRX configuration, confirms as object UE.
9. device according to claim 8; It is characterized in that said definite object UE unit will possess the ANR measurement capability, possess the discontinuous reception of long period long DRX configuration; And be in the UE of the time span of resting state, confirm as object UE greater than preset threshold value.
10. device according to claim 9; It is characterized in that; Said definite object UE unit; The time span that will possess the ANR measurement capability, possess the discontinuous reception of long period long DRX configuration, is in resting state is greater than preset threshold value, and is in the UE at Serving cell edge, confirms as object UE.
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