CN108271197A - A kind of LTE capacity analysis methods and device - Google Patents
A kind of LTE capacity analysis methods and device Download PDFInfo
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- CN108271197A CN108271197A CN201611258259.1A CN201611258259A CN108271197A CN 108271197 A CN108271197 A CN 108271197A CN 201611258259 A CN201611258259 A CN 201611258259A CN 108271197 A CN108271197 A CN 108271197A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
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Abstract
The present invention relates to a kind of LTE capacity analysis methods and device, wherein, the method includes：It determines now to net effective RRC logical connections average；Direct dilatation analysis is carried out to Target cell according to effective RRC logical connections average and existing net dilatation standard；The result and preset standard analyzed according to the direct dilatation judge whether the Target cell needs direct dilatation；If judgement knows that the Target cell is not required to direct dilatation, the pre- dilatation of VoLTE telephone traffics is carried out to the Target cell for being not required to direct dilatation and is analyzed.The LTE capacity analysis methods and device of the present invention, the active users analysis under language number and dis environment can be effectively performed, and then it can realize with impact of the Accurate Prediction VoLTE telephone traffics to LTE resources and formulate dilatation scheme in advance to avoid network congestion, and then improve user and perceive.
Description
Technical field
The present invention relates to communication service technology field more particularly to a kind of LTE capacity analysis methods and device.
Background technology
From 2014, LTE userbases tended towards stability so far, did not had larger LTE user in a short time and increased.But
With the extensive commercialization of VoLTE business, LTE network will step into language number and deposit the epoch, it is contemplated that will have a large amount of LTE users and open
Logical VoLTE business.VoLTE has highest scheduling priority, uplink and downlink resource requirement pair as the speech business for being carried on ps domain
Deng the LTE capacity analysis technologies based on clear data business will no longer be suitable for language number simultaneously under the influence of VoLTE is extensive commercial
Deposit the LTE network in epoch.For significantly more efficient analytic language number and the LTE network capacity in epoch is deposited, reply VoLTE business is to net
The impact that network capacity is brought needs significantly more efficient analytic language number business active users and look-ahead VoLTE telephone traffics
Scale.
At present industry there is no ripe, unified based on language number and the network capacity analytical plan deposited, now net for
Capacity analysis after VoLTE is introduced mainly still is based on effective RRC connections average, uplink and downlink PRB utilization rates, uplink and downlink stream
The dimensions such as amount, VoLTE telephone traffics variation are judged, if reach dilatation thresholding.After the prior art is introduced for VoLTE
From the point of view of capacity analysis reference index, there is the shortcomings that technology to include：
The prior art does not consider VoLTE correlation properties (especially for the active users analysis under language number and dis environment
It is that feature is established in the carrying of VoLTE), i.e., it is right (using VOLTE) not consider that existing 4G user is conversed on 4G networks completely
The influence that network capacity is brought；In addition, the prior art only considered whether the real-time channel occupancy of existing net has reached dilatation thresholding,
There is no the growth (being transferred to 4G including 2G, 3G subscription, existing 4G user opens VOLTE calls) to VOLTE user in future is right
Capacity carries out forecast analysis in advance, and then can not realize and formulate dilatation scheme in advance to avoid network congestion, and user is caused to feel
Know poor.
Invention content
It is not perfect for existing LTE capacity analysis scheme, it can not realize that formulate dilatation scheme in advance gathers around to avoid network
Plug causes user to perceive the defects of poor, and the following technical solutions are proposed by the present invention：
One aspect of the present invention provides a kind of LTE capacity analysis methods, including：
It determines now to net effective RRC logical connections average；
Direct dilatation point carries out Target cell according to effective RRC logical connections average and existing net dilatation standard
Analysis；
The result and preset standard analyzed according to the direct dilatation judge whether the Target cell needs direct dilatation；
If judgement knows that the Target cell is not required to direct dilatation, the Target cell for being not required to direct dilatation is carried out
The pre- dilatation analysis of VoLTE telephone traffics.
Optionally, the method is further included determines described now to net effective RRC logical connections and be averaged according to the following formula (1)
Number：
Effective RRC logical connections average=[(QCI=1 averagely activates ERAB numbers+QCI=to effectively RRC connection averages *
9 average activation ERAB numbers)/QCI=9 averagely activates ERAB numbers].(1)
Optionally, the preset standard includes：
Effective RRC numbers of users reach number of users thresholding, and downstream utilization reaches utilization rate thresholding, and downlink traffic reaches
Traffic threshold；Or,
Effective RRC numbers of users reach number of users thresholding, and upstream utilization reaches utilization rate thresholding, and uplink traffic reaches
Traffic threshold.
Optionally, the described pair of Target cell for being not required to direct dilatation carries out the pre- dilatation analysis of VoLTE telephone traffics, including：
Determine whether the Target cell meets the pre- dilatation item of VoLTE telephone traffics according to the result that the pre- dilatation is analyzed
Part；
If the Target cell meets the pre- dilatation condition of VoLTE telephone traffics, pre- dilatation is carried out for the Target cell
Early warning.
Optionally, the described pair of Target cell for being not required to direct dilatation carries out the pre- dilatation analysis of VoLTE telephone traffics, including：
VoLTE telephone traffic pre-expansions are carried out to the Target cell for being not required to direct dilatation based on 2G, 3G voice Ireland erl concepts
Hold analysis.
Optionally, it is described that the Target cell for being not required to direct dilatation is carried out based on 2G, 3G voice Ireland erl concepts
The pre- dilatation analysis of VoLTE telephone traffics, further includes：
The VoLTE voice channel numbers that remaining PRB can support simultaneously are determined based on 2G, 3G voice erl concepts；
According to the VoLTE voice channel numbers that the residue PRB after rounding can be supported simultaneously, inquiry erl-B tables determine to remain
The VoLTE voice telephone traffic amounts that remaining PRB can be supported；
Averagely activate ERAB numbers, QCI=9 that ERAB numbers, 4G is averagely activated to use according to effective RRC connections average, QCI=1
The estimated new transformation ratio for opening VOLTE user in family and 2G, 3G voice migration telephone traffic determine that prediction VoLTE increases voice words newly
Business amount；Wherein：
2G, 3G voice migrates telephone traffic=GSM cell telephone traffic * GSM telephone traffic transport coefficient+TD-SCDMA cells
Telephone traffic * TD-SCDMA telephone traffic transport coefficients；(3)
Voice telephone traffic amount is increased newly according to the residue PRB VoLTE voice telephone traffics amounts that can be supported and the prediction VoLTE
Comparing result, it is determined whether should to the Target cell carry out dilatation early warning.
On the other hand, the present invention also provides a kind of LTE capacity analysis device, including：
Logical connection determination unit, for determining now to net effective RRC logical connections average；
Direct dilatation analytic unit, for according to effective RRC logical connections average and existing net dilatation standard pair
Target cell carries out direct dilatation analysis；
Direct dilatation judging unit, result and preset standard for being analyzed according to the direct dilatation judge the mesh
Whether mark cell needs direct dilatation；
Pre- dilatation analytic unit, for when judge know that the Target cell is not required to direct dilatation when, to being not required to directly expand
The Target cell of appearance carries out the pre- dilatation analysis of VoLTE telephone traffics.
Optionally, the pre- dilatation analytic unit is specifically used for determining the target according to the result that the pre- dilatation is analyzed
Whether cell meets the pre- dilatation condition of VoLTE telephone traffics and when the Target cell meets the pre- dilatation condition of VoLTE telephone traffics
When, carry out pre- dilatation early warning for the Target cell.
Optionally, the pre- dilatation analytic unit is additionally operable to based on 2G, 3G voice Ireland erl concepts to being not required to directly expand
The Target cell of appearance carries out the pre- dilatation analysis of VoLTE telephone traffics.
Optionally, the pre- dilatation analytic unit is additionally operable to：
The VoLTE voice channel numbers that remaining PRB can support simultaneously are determined based on 2G, 3G voice erl concepts；
According to the VoLTE voice channel numbers that the residue PRB after rounding can be supported simultaneously, inquiry erl-B tables determine to remain
The VoLTE voice telephone traffic amounts that remaining PRB can be supported；
Averagely activate ERAB numbers, QCI=9 that ERAB numbers, 4G is averagely activated to use according to effective RRC connections average, QCI=1
The estimated new transformation ratio for opening VOLTE user in family and 2G, 3G voice migration telephone traffic determine that prediction VoLTE increases voice words newly
Business amount；Wherein：
2G, 3G voice migrates telephone traffic=GSM cell telephone traffic * GSM telephone traffic transport coefficient+TD-SCDMA cells
Telephone traffic * TD-SCDMA telephone traffic transport coefficients；(3)
Voice telephone traffic amount is increased newly according to the residue PRB VoLTE voice telephone traffics amounts that can be supported and the prediction VoLTE
Comparing result, it is determined whether should to the Target cell carry out dilatation early warning.
The LTE capacity analysis methods and device of the present invention now nets effective RRC logical connections average by determining, according to
Effective RRC logical connections average and existing net dilatation standard carry out direct dilatation analysis, and according to institute to Target cell
The result and preset standard for stating direct dilatation analysis judge whether the Target cell needs direct dilatation, to know institute when judgement
When stating Target cell and being not required to direct dilatation, the pre- dilatation of VoLTE telephone traffics is carried out to the Target cell for being not required to direct dilatation and is analyzed, it can
It is analyzed, and then LTE can be provided with Accurate Prediction VoLTE telephone traffics with the active users being effectively performed under language number and dis environment
The impact in source can be realized and formulate dilatation scheme in advance to avoid network congestion, and then improves user and perceive.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the flow diagram of the LTE capacity analysis methods of one embodiment of the invention；
Fig. 2 is the flow diagram of the LTE capacity analysis methods of another embodiment of the present invention；
Fig. 3 is the flow diagram of the pre- dilatation analysis method of VoLTE telephone traffics of one embodiment of the invention；
Fig. 4 is the structure diagram of the LTE capacity analysis devices of one embodiment of the invention.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment be the present invention
Part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
All other embodiments obtained under the premise of creative work are made, shall fall within the protection scope of the present invention.
As previously mentioned, at present industry there is no ripe unification based on language number and the network capacity analytical plan deposited, it is existing
Net mainly or is based on effective RRC connections average for the capacity analysis after VoLTE introducings, uplink and downlink PRB utilization rates, up and down
The dimensions such as row flow, VoLTE telephone traffics variation are judged, if reach dilatation thresholding.The dilatation standard of mainstream is as follows, wherein
Cell classification according to large, medium and small packet determines standard, real when cell reaches thresholding from busy (single cell daily practical busy)
Carrier frequency dilatation is applied, cell classification standard and dilatation thresholding are as shown in following table one：
One cell classification standard of table and dilatation thresholding
When cell meets any one following standard, it is defined as needing direct dilatation cell：
" effective RRC numbers of users reach thresholding and downstream utilization reaches thresholding (PDSCH or PDCCH) and downlink traffic reaches
To thresholding " or " effective RRC numbers of users reach thresholding and upstream utilization reaches thresholding and uplink traffic reaches thresholding.
Wherein, effective RRC connection average calculations are now netted as shown in following table two：
Table two now nets effective RRC connections average calculation
It follows that the prior art does not consider that VoLTE is related for the active users analysis under language number and dis environment
Characteristic, although the number of users of VOLTE audio calls and few is carried out in the current generation, as operator is to a surname of VOLTE
It passes and universal, the user for opening VOLTE will be more and more.Led on 4G networks therefore, it is necessary to consider existing 4G user
The influence that words (using VOLTE) bring network capacity.In addition, whether the prior art only considered the real-time channel occupancy of existing net
Dilatation thresholding is reached, (4G, existing 4G user is transferred to including 2G, 3G subscription there is no the growth based on VOLTE user in future
Open VOLTE calls) forecast analysis in advance is carried out to capacity to carry out dilatation solution formulation in advance, i.e., network can not be avoided to gather around
Plug.
Based on this, the present invention proposes the LTE capacity analysis methods under a kind of language number and dis environment, passes through effective RRC logics
The defects of connection average calculates and VoLTE telephone traffic erl prediction algorithms effectively make up existing algorithm.
Fig. 1 is the flow diagram of the LTE capacity analysis methods of one embodiment of the invention, as shown in Figure 1, this method packet
It includes：
S1：It determines now to net effective RRC logical connections average；
Specifically, effective RRC connections average (i.e. effective RRC numbers of users) is now netted to be defined as：Using 100ms as the period,
Effective RRC connections number is recorded, and takes the average value in each period；Within every 100ms, if any one relevant E- of certain RRC
RAB has data transmission, then is effectively (referring to the performance measurement of 3GPP TS 32.425 depending on the RRC connections
ERAB.SessionTimeUE)；
The characteristics of VoLTE business ERAB carryings are established：VoLTE speech businesses need to establish QCI=9, QCI=5 and QCI
=1 three ERAB (video traffic also needs to increase the ERAB of QCI=2), this three ERAB will share 1 RRC connection；
Impact analysis after the introducing of VoLTE business to effective RRC connections number：From defining for effective RRC connection averages
Hair is it is found that any ERAB has data traffic in 100ms, then the corresponding RRC of the ERAB will be designated as effective RRC, QCI=
9 are not only default bearing (the basis carryings of all business), while undertake certain data service, when language number service concurrence,
Effective RRC connection numbers still maintain constant；
On this basis, it can be determined described now to net effective RRC logical connections average according to the following formula (1)：
Effective RRC logical connections average=[(QCI=1 averagely activates ERAB numbers+QCI=to effectively RRC connection averages *
9 average activation ERAB numbers)/QCI=9 averagely activates ERAB numbers].(1)
Wherein, the calculation of the relevant parameter involved by above-mentioned formula (1) or index is described as follows shown in table three：
The calculation explanation of three relevant parameter of table or index
S2：Target cell is directly expanded according to effective RRC logical connections average and existing net dilatation standard
Hold analysis；
Specifically, existing net dilatation standard can be as shown in following table four described in the present embodiment.
Four cell classification standard of table and dilatation thresholding
When cell meets wherein any one standard, it is defined as needing direct dilatation cell：
" effective RRC numbers of users reach thresholding, and downstream utilization reaches thresholding (PDSCH or PDCCH), and downlink traffic
Reach thresholding "；Or, " effective RRC numbers of users reach thresholding, and upstream utilization reaches thresholding and uplink traffic reaches thresholding.
S3：The result and preset standard analyzed according to the direct dilatation judge whether the Target cell needs directly to expand
Hold；
S4：If judgement knows that the Target cell is not required to direct dilatation, the Target cell for being not required to direct dilatation is carried out
The pre- dilatation analysis of VoLTE telephone traffics.
Specifically, VoLTE traffics are carried out by 2G, 3G voice erl concepts for the cell for being unsatisfactory for direct dilatation thresholding
Measure pre- dilatation analysis；If the cell meets the pre- dilatation analysis condition of VoLTE telephone traffics by analysis, it is pre- to carry out pre- dilatation
It is alert, and formulate dilatation scheme；If the cell is unsatisfactory for the pre- dilatation analysis condition of VoLTE telephone traffics by analysis, terminate to hold
Amount analysis.
The LTE capacity analysis methods of the present embodiment now net effective RRC logical connections average, according to described by determining
Effective RRC logical connections average and existing net dilatation standard carry out Target cell direct dilatation analysis, and according to described straight
The result and preset standard for connecing dilatation analysis judge whether the Target cell needs direct dilatation, to know the mesh when judgement
When mark cell is not required to direct dilatation, the pre- dilatation of VoLTE telephone traffics is carried out to the Target cell for being not required to direct dilatation and is analyzed, Ke Yiyou
Effect ground carries out the active users analysis under language number and dis environment, and then can be with Accurate Prediction VoLTE telephone traffics to LTE resources
Impact can be realized and formulate dilatation scheme in advance to avoid network congestion, and then improves user and perceive.
Further, it is small to being not required to the target of direct dilatation described in step S4 as the preferred of above method embodiment
Area carries out the pre- dilatation analysis of VoLTE telephone traffics, can include：
VoLTE telephone traffic pre-expansions are carried out to the Target cell for being not required to direct dilatation based on 2G, 3G voice Ireland erl concepts
Hold analysis.
On this basis, it is above-mentioned that the Target cell for being not required to direct dilatation is carried out based on 2G, 3G voice Ireland erl concepts
The pre- dilatation analysis of VoLTE telephone traffics, can also include：
The VoLTE voice channel numbers that remaining PRB can support simultaneously are determined based on 2G, 3G voice erl concepts；
According to the VoLTE voice channel numbers that the residue PRB after rounding can be supported simultaneously, inquiry erl-B tables determine to remain
The VoLTE voice telephone traffic amounts that remaining PRB can be supported；
Averagely activate ERAB numbers, QCI=9 that ERAB numbers, 4G is averagely activated to use according to effective RRC connections average, QCI=1
The estimated new transformation ratio for opening VOLTE user in family and 2G, 3G voice migration telephone traffic determine that prediction VoLTE increases voice words newly
Business amount；Wherein：
2G, 3G voice migrates telephone traffic=GSM cell telephone traffic * GSM telephone traffic transport coefficient+TD-SCDMA cells
Telephone traffic * TD-SCDMA telephone traffic transport coefficients；(3)
Voice telephone traffic amount is increased newly according to the residue PRB VoLTE voice telephone traffics amounts that can be supported and the prediction VoLTE
Comparing result, it is determined whether should to the Target cell carry out dilatation early warning.
The present invention is illustrated, but do not limit protection scope of the present invention with a specific embodiment below.
Fig. 2 is the flow diagram of the LTE capacity analysis methods of another embodiment of the present invention；As shown in Fig. 2, this method
It is brought including the direct dilatation analysis being directed under existing net cell language number and dis environment and for the great development of VoLTE business
Two parts are analyzed in the pre- dilatation of VoLTE telephone traffics, and specific steps include：
A1：The characteristics of being established with reference to VoLTE service bearers determines effective RRC logical connections average；
A2：Direct dilatation point carries out cell according to effective RRC logical connections average and existing net dilatation standard
It analyses (the dilatation standard is as shown in upper table four)；
When cell meets wherein any one standard, it is defined as needing direct dilatation cell：
" effective RRC numbers of users reach thresholding, and downstream utilization reaches thresholding (PDSCH or PDCCH), and downlink traffic
Reach thresholding "；Or, " effective RRC numbers of users reach thresholding, and upstream utilization reaches thresholding and uplink traffic reaches thresholding.
Specifically, effective RRC connections average (i.e. effective RRC numbers of users) is now netted to be defined as：Using 100ms as the period,
Effective RRC connections number is recorded, and takes the average value in each period；Within every 100ms, if any one relevant E- of certain RRC
RAB has data transmission, then is effectively (referring to the performance measurement of 3GPP TS 32.425 depending on the RRC connections
ERAB.SessionTimeUE)；
The characteristics of VoLTE business ERAB carryings are established：VoLTE speech businesses need to establish QCI=9, QCI=5 and QCI
=1 three ERAB (video traffic also needs to increase the ERAB of QCI=2), this three ERAB will share 1 RRC connection；
Impact analysis after the introducing of VoLTE business to effective RRC connections number：From defining for effective RRC connection averages
Hair is it is found that any ERAB has data traffic in 100ms, then the corresponding RRC of the ERAB will be designated as effective RRC, QCI=
9 are not only default bearing (the basis carryings of all business), while undertake certain data service, when language number service concurrence,
Effective RRC connection numbers still maintain constant；
On this basis, it can be determined described now to net effective RRC logical connections average according to the following formula (1)：
Effective RRC logical connections average=[(QCI=1 averagely activates ERAB numbers+QCI=to effectively RRC connection averages *
9 average activation ERAB numbers)/QCI=9 averagely activates ERAB numbers].(1)
Wherein, the calculation of the relevant parameter involved by above-mentioned formula (1) or index explanation is as shown in upper table three.
It is understood that since UE adheres to (Attach) network, it is necessary to establish a carrying, here it is the acquiescences
Carrying.The default bearing is created that when UE adheres to network and is always maintained at activating, until UE is from network attachment removal (Detach)
(this namely LTE provides the IP connections of " always online " for UE), QCI=9 is held as the basis that default bearing is all business
It carries.
A3：For the cell for being unsatisfactory for direct dilatation thresholding, it is pre- to carry out VoLTE telephone traffics by 2G, 3G voice erl concepts
Dilatation is analyzed.
Specifically, to carry out pre- dilatation if the cell by analysis meets the pre- dilatation analysis condition of VoLTE telephone traffics pre-
It is alert, formulate dilatation scheme；
And terminate capacity analysis if the cell by analysis is unsatisfactory for.
Specifically, Fig. 3 shows the flow of the pre- dilatation analysis method of the VoLTE telephone traffics of one embodiment of the invention.Its
In, VoLTE business uplink and downlink resource requirements are symmetrical, and uplink is limited, therefore the prediction of telephone traffic is mainly provided using uplink PRB
Source.As shown in figure 3, the pre- dilatation analysis method of VoLTE telephone traffics includes：
B1：According to the index as shown in following table five of network management platform index extraction this week and last week：
Table five need to extract index
B2：Uplink, which is calculated, according to the following formula occupies PRB numbers, uplink per ms data services occupancy PRB numbers per ms VoLTE
And uplink occupies PRB increased numbers per ms data services：
Uplink occupies PRB numbers=uplink VoLTE per ms VoLTE and occupies in PDCP layers of reception of cell of PRB sums/QCI1
The business total duration of row data；
Uplink occupies PRB numbers=uplink PUSCH PRB per ms data services and occupies the every msVoLTE occupancy of average-uplink
PRB numbers；
Uplink occupies PRB increased numbers=this week uplink per ms data services and PRB numbers-last week uplink is occupied per ms data services
PRB numbers are occupied per ms data services；
B3：Every ms residues PRB numbers of now surfing the net are calculated according to the following formula：
Every ms residues PRB numbers=uplink PUSCH PRB that now surf the net can use average-(every ms data services occupancy of uplink
PRB numbers+uplink occupies PRB numbers+uplink per ms VoLTE and occupies PRB increased numbers per ms data services).
B4：The data service behavioural habits of user will not change easily over a period to come, thus can according to 2G,
3G subscription data service behavioural habits and 4G typical services occupy PRB numbers, and prediction 4G Adds User PRB numbers needed for data service.
Specifically, by extracting locality 2G, 3G subscription busy type of service and using duration, comparing such business in 4G nets
Occupied PRB numbers in network busy equal time, you can prediction 4G Adds User PRB numbers where data service.
B5：Final remaining uplink after PRB numbers needed for newly-increased 4G user data services is subtracted using existing net residue PRB numbers
PRB resources approximate can be supplied to the resource of VoLTE business as the cell.
It is understood that the existing net residue PRB numbers can carry out really according to every ms residues PRB numbers of now surfing the net
It is fixed.
B6：Not good enough distribution proportion is 3 during China Mobile is good:4:3, VoLTE averagely occupy 2 when better per voice packets
PRB, midpoint and it is not good enough when averagely occupy 3 to 4 PRB, it is known that VoLTE averagely occupies 3.15 PRB per voice packet.
It is understood that it is described it is good in not good enough distribution proportion enable user good in network environment respectively according to Optimization Experience
Point, midpoint and not good enough distribution proportion.
B7：VoLTE voice traffic channel number concepts are established according to 2G, 3G voice erl concepts.Remaining PRB can be supported simultaneously
VoLTE voice channels number=uplink carry out rounding per ms residue PRB number/3.15, and by VoLTE voice channels number.
Wherein, the rounding is rounds up (such as 3.2 be taken as 4).
B8：According to erl-B tables, it is 2% to define the percent of call lost, the VoLTE languages that can be supported simultaneously with reference to the remaining PRB after rounding
Sound number of channel inquiry erl-B tables can obtain the VoLTE voice telephone traffic amounts that remaining PRB can be supported, unit erl.
It is understood that the Erl_B tables can be existing, the erl_B tables that can find, the present invention to this not
It is defined.
B9：Prediction VoLTE increases voice telephone traffic amount=effectively (1-QCI=1 averagely activates ERAB by RRC connection averages * newly
Number/QCI=9 averagely activates ERAB numbers) * X+2G, 3G voices migration telephone traffic, wherein X opens VOLTE use for 4G user is estimated new
The transformation ratio at family；Effective RRC connections average can be extracted directly by network management platform, effective RRC connections average
It is《ENB statistical items and masterplate explanation -2.5.0》Set quota；The transformation ratio can be used by market department by counting 4G
Family VoLTE service fulfillment ratios obtain.
B10：Effective RRC logical connections average=effectively RRC connection averages * [(QCI=1 averagely activate ERAB numbers+
QCI=9 averagely activates ERAB numbers)/(QCI=9 averagely activates ERAB numbers)].
B11：By comparing equivalent Erl concepts, calculate whether the LTE cell residues number of channel can support that the VoLTE of prediction is new
Increase voice telephone traffic amount, you can develop according to VoLTE traffics and carry out dilatation prediction, carry out dilatation solution formulation in advance.
It is understood that the equivalent Erl is as equivalent channel according to the above-mentioned remaining PRB numbers being calculated
Number, in addition 2% percent of call lost inquires supported 4G telephone traffics by erl_B tables.
Wherein：2G, 3G voice migration telephone traffic=GSM cell telephone traffic * GSM telephone traffic transport coefficients+TD-SCDMA are small
Area's telephone traffic * TD-SCDMA telephone traffic transport coefficients.
It is understood that the GSM telephone traffics transport coefficient, TD-SCDMA telephone traffics transport coefficient can be according to tables five
In GSM cell telephone traffic, TD-SCDMA cellular traffics this week and upper weekly data be calculated.
Fig. 4 is the structure diagram of the LTE capacity analysis devices of one embodiment of the invention.As shown in figure 4, the device packet
Include logical connection determination unit 10, direct dilatation analytic unit 20, direct dilatation judging unit 30 and pre- dilatation analytic unit
40, wherein：
Logical connection determination unit 10 now nets effective RRC logical connections average for determining；
Direct dilatation analytic unit 20 is used for according to effective RRC logical connections average and existing net dilatation standard pair
Target cell carries out direct dilatation analysis；
Direct dilatation judging unit 30 is used for according to judging the result and preset standard that the direct dilatation is analyzed
Whether Target cell needs direct dilatation；
Pre- dilatation analytic unit 40 is used for when judging to know that the Target cell is not required to direct dilatation, to being not required to directly expand
The Target cell of appearance carries out the pre- dilatation analysis of VoLTE telephone traffics.
Specifically, the workflow of the device of the present embodiment includes：Logical connection determination unit 10 determines now to net effective RRC
Logical connection average；Direct dilatation analytic unit 20 is according to effective RRC logical connections average and existing net dilatation mark
Standard carries out direct dilatation analysis to Target cell；Result that direct dilatation judging unit 30 is analyzed according to the direct dilatation and
Preset standard judges whether the Target cell needs direct dilatation；Pre- dilatation analytic unit 40 is knowing that the target is small when judgement
When area is not required to direct dilatation, the pre- dilatation of VoLTE telephone traffics is carried out to the Target cell for being not required to direct dilatation and is analyzed.
Device described in the present embodiment can be used for performing above method embodiment, and principle is similar with technique effect, this
Place repeats no more.
Further, as the preferred of above device embodiment, the pre- dilatation analytic unit 40 can be specifically used for root
The result analyzed according to the pre- dilatation determines whether the Target cell meets the pre- dilatation condition of VoLTE telephone traffics and work as institute
When stating Target cell and meeting the pre- dilatation condition of VoLTE telephone traffics, pre- dilatation early warning is carried out for the Target cell.
Further, as the preferred of above device embodiment, the pre- dilatation analytic unit 40 can be also used for being based on
2G, 3G voice Ireland erl concepts carry out the pre- dilatation of VoLTE telephone traffics to the Target cell for being not required to direct dilatation and analyze.
Further, as the preferred of above device embodiment, the pre- dilatation analytic unit 40 can be also used for：
The VoLTE voice channel numbers that remaining PRB can support simultaneously are determined based on 2G, 3G voice erl concepts；
According to the VoLTE voice channel numbers that the residue PRB after rounding can be supported simultaneously, inquiry erl-B tables determine to remain
The VoLTE voice telephone traffic amounts that remaining PRB can be supported；
Averagely activate ERAB numbers, QCI=9 that ERAB numbers, 4G is averagely activated to use according to effective RRC connections average, QCI=1
The estimated new transformation ratio for opening VOLTE user in family and 2G, 3G voice migration telephone traffic determine that prediction VoLTE increases voice words newly
Business amount；Wherein：
2G, 3G voice migrates telephone traffic=GSM cell telephone traffic * GSM telephone traffic transport coefficient+TD-SCDMA cells
Telephone traffic * TD-SCDMA telephone traffic transport coefficients；(3)
Voice telephone traffic amount is increased newly according to the residue PRB VoLTE voice telephone traffics amounts that can be supported and the prediction VoLTE
Comparing result, it is determined whether should to the Target cell carry out dilatation early warning.
Device described in the present embodiment can be used for performing above method embodiment, and principle is similar with technique effect, this
Place repeats no more.
It should be noted that for device embodiment, since it is basicly similar to embodiment of the method, so description
Fairly simple, the relevent part can refer to the partial explaination of embodiments of method.
The LTE capacity analysis methods and device of the present invention is averagely activated by the uplink and downlink for combining QCI=1 and QCI=9
ERAB numbers RRC connections average effective to existing net, which is modified to obtain effective RRC logical connections, to be averaged, more efficient progress language number
And the active users analysis under dis environment；And pass through and VoLTE business occupancy PRB numbers are equivalent to voice channel number, with reference to exhaling
Loss rate and erl-B tables establish the VoLTE voice telephone traffic amounts as unit of erl, and combine 2G, 3G telephone traffic and carry out VoLTE traffics
Scale forecast is measured, can realize the active users analysis that is more effectively carried out under language number and dis environment and more accurately pre-
Survey impact of the VoLTE telephone traffics to LTE resources.
Above example is merely to illustrate technical scheme of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example modifies or carries out equivalent replacement to which part technical characteristic；And these are changed or replace
It changes, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of LTE capacity analysis methods, which is characterized in that including：
It determines now to net effective radio resource control RRC logical connection average；
Direct dilatation analysis is carried out to Target cell according to effective RRC logical connections average and existing net dilatation standard；
The result and preset standard analyzed according to the direct dilatation judge whether the Target cell needs direct dilatation；
If judgement knows that the Target cell is not required to direct dilatation, the Target cell for being not required to direct dilatation is carried out based on IMS
Speech business VoLTE telephone traffics pre- dilatation analysis.
2. according to the method described in claim 1, it is characterized in that, the method is further included determines institute according to the following formula (1)
State the effective RRC logical connections average of existing net：
Effective RRC logical connections average=effectively RRC connection averages * [(weigh scale value QCI=1 and averagely swash by service quality
The radio access bearer ERAB numbers+QCI=9 of evolution living averagely activates the radio access bearer ERAB numbers of evolution)/QCI=9 is average
Activate ERAB numbers].(1).
3. according to the method described in claim 1, it is characterized in that, the preset standard includes：
Effective RRC numbers of users reach number of users thresholding, and downstream utilization reaches utilization rate thresholding, and downlink traffic reaches flow
Thresholding；Or,
Effective RRC numbers of users reach number of users thresholding, and upstream utilization reaches utilization rate thresholding, and uplink traffic reaches flow
Thresholding.
4. according to the method described in claim 1, it is characterized in that, the described pair of Target cell for being not required to direct dilatation carries out
The pre- dilatation analysis of VoLTE telephone traffics, including：
Determine whether the Target cell meets the pre- dilatation condition of VoLTE telephone traffics according to the result that the pre- dilatation is analyzed；
If the Target cell meets the pre- dilatation condition of VoLTE telephone traffics, pre- dilatation early warning is carried out for the Target cell.
5. according to the method described in claim 4, it is characterized in that, the described pair of Target cell for being not required to direct dilatation carries out
The pre- dilatation analysis of VoLTE telephone traffics, including：
The pre- dilatation point of VoLTE telephone traffics is carried out to the Target cell for being not required to direct dilatation based on 2G, 3G voice Ireland erl concepts
Analysis.
6. according to the method described in claim 5, it is characterized in that, 2G, 3G voice Ireland erl concepts that are based on are to being not required to
The Target cell of direct dilatation carries out the pre- dilatation analysis of VoLTE telephone traffics, further includes：
The VoLTE voice channel numbers that remaining Physical Resource Block PRB can support simultaneously are determined based on 2G, 3G voice erl concepts；
According to the VoLTE voice channel numbers that the residue PRB after rounding can be supported simultaneously, inquiry erl-B tables determine remaining PRB
The VoLTE voice telephone traffic amounts that can be supported；
ERAB numbers, QCI=9 is averagely activated averagely to activate ERAB numbers, 4G user pre- according to effective RRC connections average, QCI=1
Meter newly opens the transformation ratio of VOLTE user and 2G, 3G voice migration telephone traffic determine that prediction VoLTE increases voice telephone traffic newly
Amount；Wherein：
2G, 3G voice migration telephone traffic=global system for mobile communications GSM cell telephone traffic * GSM telephone traffics transport coefficient+
TD SDMA TD-SCDMA cellular traffic * TD-SCDMA telephone traffic transport coefficients；(3)
Increase pair of voice telephone traffic amount newly according to the residue PRB VoLTE voice telephone traffics amounts that can be supported and the prediction VoLTE
Compare result, it is determined whether dilatation early warning should be carried out to the Target cell.
7. a kind of LTE capacity analysis device, which is characterized in that including：
Logical connection determination unit, for determining now to net effective RRC logical connections average；
Direct dilatation analytic unit, for according to effective RRC logical connections average and existing net dilatation standard to target
Cell carries out direct dilatation analysis；
Direct dilatation judging unit, result and preset standard for being analyzed according to the direct dilatation judge that the target is small
Whether area needs direct dilatation；
Pre- dilatation analytic unit, for when judge know that the Target cell is not required to direct dilatation when, to being not required to direct dilatation
Target cell carries out the pre- dilatation analysis of VoLTE telephone traffics.
8. device according to claim 7, which is characterized in that the pre- dilatation analytic unit is specifically used for according to described pre-
The result of dilatation analysis determines whether the Target cell meets the pre- dilatation condition of VoLTE telephone traffics and when the target is small
When area meets VoLTE telephone traffics pre- dilatation condition, pre- dilatation early warning is carried out for the Target cell.
9. device according to claim 8, which is characterized in that the pre- dilatation analytic unit is additionally operable to based on 2G, 3G language
Sound Ireland erl concepts carry out the pre- dilatation of VoLTE telephone traffics to the Target cell for being not required to direct dilatation and analyze.
10. device according to claim 9, which is characterized in that the pre- dilatation analytic unit is additionally operable to：
The VoLTE voice channel numbers that remaining PRB can support simultaneously are determined based on 2G, 3G voice erl concepts；
According to the VoLTE voice channel numbers that the residue PRB after rounding can be supported simultaneously, inquiry erl-B tables determine remaining PRB
The VoLTE voice telephone traffic amounts that can be supported；
ERAB numbers, QCI=9 is averagely activated averagely to activate ERAB numbers, 4G user pre- according to effective RRC connections average, QCI=1
Meter newly opens the transformation ratio of VOLTE user and 2G, 3G voice migration telephone traffic determine that prediction VoLTE increases voice telephone traffic newly
Amount；Wherein：
2G, 3G voice migrates telephone traffic=GSM cell telephone traffic * GSM telephone traffic transport coefficient+TD-SCDMA cell telephone traffics
Measure * TD-SCDMA telephone traffic transport coefficients；(3)
Increase pair of voice telephone traffic amount newly according to the residue PRB VoLTE voice telephone traffics amounts that can be supported and the prediction VoLTE
Compare result, it is determined whether dilatation early warning should be carried out to the Target cell.
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| CN111385800A (en) * | 2018-12-29 | 2020-07-07 | 北京亿阳信通科技有限公司 | Carrier scheduling method and device for LTE capacity balance |
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