CN105959976B - VoLTE analysis method based on measurement report - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
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Abstract
The present invention relates to the VoLTE analysis methods based on measurement report.Original sample class measurement report data is acquired first;It checks whether user replaced main serving cell according to user's mark, if replacing, is judged as voice packet loss caused by switching;Otherwise UE downlink packet loss and uplink packet loss are compared, if downlink packet loss > 10%, comparison UE receives power , Ruo≤- 110dBm, is judged as that the weak covering of downlink leads to voice packet loss;Otherwise comparison adjacent area receives power, extracts the sampled point of -3dBm higher than main serving cell, compares these sampled points, if the MOD3 with main serving cell is identical, being judged as adjacent area and main serving cell, there are MOD3 interference to lead to voice packet loss;If uplink packet loss > 10%, UE transmission power surplus , Ruo≤5dB is compared, is judged as that the weak covering of uplink leads to voice packet loss;Otherwise comparison uplink signal signal-to-noise ratio is judged as that uplink interference leads to voice packet loss if > 0dB.The present invention can carry out quality analysis to wireless uplink and downlink, and can position the wireless reason for causing VoLTE matter difference.
Description
Technical field
The present invention relates to voice data transmission technical field more particularly to a kind of analysis sides VoLTE based on measurement report
Method.
Background technique
Physical layer measurement is a critical function of LTE system.The measurement result that physical layer reports can be used in system
Wireless heterogeneous networks sublayer completes cell reselection or the triggering of the times such as gravity treatment and switching, can be used for system operatio dimension
Shield, the operating status of observing system.
The measurement report data of LTE is mainly from the physical layer of UE (user equipment) and ENodeb, RLC and is wirelessly providing
The measurement report generated is calculated during source control.Raw measurement data reports and submits OMC-R by statistics calculating to count
Data mode store or directly OMC-R is reported and submitted to be stored in the form of sample data.LTE measurement data covers small
Network coverage situation, quality of service, Uplink/Downlink interference level, cell or the carrier wave emission function in area etc..It can lead to
The measurement report (MR) of acquisition the whole network is crossed, the measured value of eating dishes without rice or wine during user's communication is obtained, by acquiring, analyzing measurement report
Data can advantageously find the distribution situation of active user, solve to cover the common network optimizations such as loophole, conversation loss in network
Problem saves a large amount of man power and material so as to substitute the work of part drive test.
The main measurement report of MR is divided into MRS, MRO, MRE three parts:
1) MRS:MRS is the measurement report for counting class, and system can generally carry out once counting output, file type for 15 minutes
It is the monofile of CSV, general all very little.The network evaluation of quality of service and interference can be carried out with MRS measurement report;
2) MRO:MRO is the measurement report of sample class, does not include the sample data of time trigger, and file type is XML lattice
Formula, due to carrying the metrical information of a large amount of second grade, data volume is generally all very big.In addition, MRO and system setting report week
There are much relations in phase, and the period is shorter, and the file of generation is bigger;
3) MRE:MRE is the measurement report sample data that event triggers in MR measurement report;
According to different granularities, MRO data can export the measurement report of cell-level, sub-frame level and PRB, at present existing net
Smallest particles degree is sub-frame level.Since the gauge outfit of each sample in MRO data contains the information of cell, so weight when analysis
The content of point concern MRO output.
The analysis of the contents such as covering, quality is related only in MR analysis at present, these analyses are without differentiated service.
And the requirement in VoLTE to RSRP and SINR is more harsh, so cannot be carried out with data service during analyzing VoLTE
Unified analysis processing.Conventional VoLTE analysis method is based on road test, and DT analysis can only reflect the VoLTE in road
Quality, the case where whole users cannot be reflected, and Drive Test is the test based on downlink wireless, to wirelessly can not for uplink
Corresponding data are provided.
Summary of the invention
To solve the above problems, the present invention provides a kind of VoLTE analysis method based on measurement report, this method is not only
VoLTE problem user can be found out, moreover it is possible to which, according to other correlative measurement quantifiers, specific positioning causes the wireless reason of VoLTE matter difference.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of VoLTE analysis method based on measurement report, comprising the following steps:
Step 1, acquisition original sample class measurement report data, the data need to comprising MmeUeS1apId,
MR.LteScPlrDLQci1、MR.LteScPlrULQci1、MR.LteScRSRP、MR.LteNcRSRP、MR.LteNcPci、
MR.LteScPHR, MR.LteScSinrUL, extract sample class measurement report data in MR.LteScPlrDLQci1 or
MR.LteScPlrULQci1 is greater than 10% sampled point, and the sampled point extracted is high packet loss sampled point, adopts for VoLTE problem
Sampling point;
Step 2 checks whether user replaced main serving cell according to MmeUeS1apId, if replacing, illustrates packet loss
Shi Shichang switches problem, is judged as voice packet loss caused by switching;If not replacing, 3 are entered step;
Step 3, judgement be MR.LteScPlrDLQci1 be greater than 10% or MR.LteScPlrULQci1 be greater than 10%,
If MR.LteScPlrDLQci1 is greater than 10%, then carried out by step 4;If MR.LteScPlrULQci1 is greater than 10%, then
It is carried out by step 5;
Step 4, MR.LteScPlrDLQci1 be greater than 10%, determine that downlink wireless environment goes wrong, in the steps below into
Row analysis;
Step 4-1, MR.LteScRSRP is compared, if being less than or equal to -110dBm, illustrates that downlink covering is poor, is judged as
The weak covering of downlink leads to voice packet loss;If more than -110dBm, then step 4-2 is gone to;
Step 4-2, MR.LteNcRSRP is compared, the sampled point of -3dBm higher than main serving cell is extracted, then compares again
The MR.LteNcPci of these sampled points illustrates that main serving cell is strong with neighboring area signal if the MOD3 with main serving cell is identical
Spend close, and there are MOD3 interference, being judged as adjacent area and main serving cell, there are MOD3 interference to lead to voice packet loss;
Step 5, MR.LteScPlrULQci1 be greater than 10%, determine that up-link wireless environment goes wrong, in the steps below into
Row analysis;
Step 5-1, compare MR.LteScPHR, if be less than or equal to 5dB, illustrate that UE transmission power is larger, uplink covering by
Limit is judged as that the weak covering of uplink leads to voice packet loss;If more than 5dBm, then step 5-2 is gone to;
Step 5-2, it compares MR.LteScSinrUL and illustrates that uplink interference is larger if more than 0dB, cause uplink packet loss, sentence
Breaking leads to voice packet loss for uplink interference.
MmeUeS1apId is user's mark in step 1, is the mark number that MME distributes to UE;
MR.LteScPlrDLQci1 reflection UE receives the packet loss size of the downlink data of serving cell transmission, is reflection downlink business
The main indicator of quality;MR.LteScPlrULQci1 reflects the packet loss size for the upstream data that UE is sent to serving cell, is
Reflect the main indicator of up-link service quality;The Reference Signal Received Power that MR.LteScRSRP reflection UE receives serving cell is big
It is small, it is the main indicator for reflecting serving cell covering;MR.LteNcRSRP reflection UE, which is under some serving cell, to be received
Defined neighboring BS relationship and undefined neighboring BS relationship adjacent area Reference Signal Received Power size, be determine switching it is main
With reference to;MR.LteNcPci is the physical area identification code of defined neighboring BS relationship and undefined neighboring BS relationship, small for indicating
Area;MR.LteScPHR reflects the UE transmission power surplus of serving cell, by the way that UE maximum transmission power 23-UE is arranged in network management
Transmission power surplus, to calculate the transmission power of UE terminal;MR.LteScSinrUL reflects the received uplink signal of serving cell
Signal-to-noise ratio, be reflect cell uplink signal quality main indicator.
Judge whether in step 2 mode for replacing main serving cell be check user MR.LteScEarfcn and
MR.LteScPci, wherein MR.LteScEarfcn is the carrier number of serving cell, indicates the frequency point of main serving cell;
MR.LteScPci is the physical area identification code of serving cell, determines specific cell for indicating main serving cell PCI, leads to
User's main serving cell frequency point and PCI are crossed to determine whether switching occurred.
The invention firstly uses two data of MR.LteScPlrDLQci1, MR.LteScPlrULQci1 to find out problem sampling
Point, by screened upstream or downstream packet loss greater than 10% sampled point come determine occur matter difference problem be uplink or under
Then row makes a concrete analysis of the reason of causing voice packet loss by other data again.
Beneficial effects of the present invention:
1, the method for the present invention can extract the carrying of different Q CI to filter out VoLTE user, carry out for VoLTE business
Analysis.
2, the method for the present invention relies on MR data, can carry out quality analysis to wireless uplink and downlink.
3, the method for the present invention can not only find out VoLTE problem user, and also according to other correlative measurement quantifiers, specific positioning is caused
The wireless reason of VoLTE matter difference.
Detailed description of the invention
Fig. 1 is the flow chart of the method for the present invention.
Specific embodiment
The method of the present invention is described in detail with reference to the accompanying drawing.
A kind of VoLTE analysis method based on measurement report, this method need to based on sample class measurement report (MRO) file into
Row analysis, 46 essential informations are amounted in MRO file, this analysis mainly using MmeUeS1apId,
MR.LteScPlrDLQci1、MR.LteScPlrULQci1、MR.LteScRSRP、MR.LteNcRSRP、MR.LteNcPci、
These data of MR.LteScPHR, MR.LteScSinrUL are below described in detail above-mentioned data meaning:
MmeUeS1apId: for user's mark, which is the mark number that MME distributes to UE, has the whole network uniqueness.
MR.LteScPlrDLQci1: reflection UE receives the packet loss size of the downlink data of serving cell transmission, is reflection
The main indicator of downlink business quality.This measurement data indicates the original of received TD-LTE serving cell downlink signal packet loss
Measured value, when only existing one of or several business, the packet loss for being not involved with QCI is denoted as NIL.
MR.LteScPlrULQci1: the packet loss size for the upstream data that reflection UE is sent to serving cell, is in reflection
The main indicator of row quality of service.This measurement data indicates the original survey of received TD-LTE serving cell uplink signal packet loss
Magnitude, when only existing one of or several business, the packet loss for being not involved with QCI is denoted as NIL.
MR.LteScRSRP: reflection UE receives the Reference Signal Received Power size of serving cell, is reflection serving cell
The main indicator of covering.This measurement data indicates the original measurement value of received TD-LTE serving cell reference signal power (i.e.
Measured value in the Uu mouthfuls of measurement reports reported), unit meets power measurement dimension.
MR.LteNcRSRP: reflection UE is in the defined neighboring BS relationship received under some serving cell and undefined
The size of the adjacent area Reference Signal Received Power of neighboring BS relationship is the Primary Reference for determining switching.Undefined adjacent area is OMC-R adjacent
The adjacent area being not configured in area's configured list.This measurement data indicates the received defined neighboring BS relationship of TD-LTE and undefined adjacent area
The original measurement value (i.e. measured value in the Uu mouthfuls of measurement report reported) of the adjacent area Reference Signal Received Power of relationship, unit
Meet power measurement dimension.
MR.LteNcPci: the physical area identification code of defined neighboring BS relationship and undefined neighboring BS relationship is small for indicating
Area.
MR.LteScPHR: reflecting the UE transmission power surplus of serving cell, by the way that UE maximum transmission power is arranged in network management
23-UE transmission power surplus, to calculate the transmission power of UE terminal.
MR.LteScSinrUL: the signal-to-noise ratio of the reflection received uplink signal of serving cell is reflection cell uplink signal
The main indicator of quality.This measurement data indicates the original measurement value of received TD-LTE serving cell uplink signal-to-noise ratio.
The VoLTE analysis method the following steps are included:
Step 1, acquisition original sample class measurement report data (MRO), the data need to comprising MmeUeS1apId,
MR.LteScPlrDLQci1、MR.LteScPlrULQci1、MR.LteScRSRP、MR.LteNcRSRP、MR.LteNcPci、
MR.LteScPHR, MR.LteScSinrUL extract MR.LteScPlrDLQci1 or MR.LteScPlrULQci1 in MRO data
Sampled point greater than 10%, the sampled point extracted are high packet loss sampled point, are VoLTE problem sampled point.
Step 2 checks whether user replaced main serving cell according to MmeUeS1apId, if replacing, illustrates packet loss
Shi Shichang switches problem, is judged as voice packet loss caused by switching;If not replacing, 3 are entered step;Judge whether to replace
The mode for crossing main serving cell is to check the MR.LteScEarfcn and MR.LteScPci of user, wherein MR.LteScEarfcn
It is the carrier number of serving cell, MR.LteScPci is the physical area identification code of serving cell, passes through user's main serving cell frequency
Point and PCI were to determine whether occurred switching.
Step 3, judgement be MR.LteScPlrDLQci1 be greater than 10% or MR.LteScPlrULQci1 be greater than 10%,
If MR.LteScPlrDLQci1 is greater than 10%, then carried out by step 4;If MR.LteScPlrULQci1 is greater than 10%, then
It is carried out by step 5.
Step 4, MR.LteScPlrDLQci1 be greater than 10%, determine that downlink wireless environment goes wrong, in the steps below into
Row analysis;
Step 4-1, MR.LteScRSRP is compared, if being less than or equal to -110dBm, illustrates that downlink covering is poor, is judged as
The weak covering of downlink leads to voice packet loss;If more than -110dBm, then step 4-2 is gone to;
Step 4-2, MR.LteNcRSRP is compared, the sampled point of -3dBm higher than main serving cell is extracted, then compares again
The MR.LteNcPci of these sampled points illustrates that main serving cell is strong with neighboring area signal if the MOD3 with main serving cell is identical
Spend close, and there are MOD3 interference, being judged as adjacent area and main serving cell, there are MOD3 interference to lead to voice packet loss.
Step 5, MR.LteScPlrULQci1 be greater than 10%, determine that up-link wireless environment goes wrong, in the steps below into
Row analysis;
Step 5-1, compare MR.LteScPHR, if be less than or equal to 5dB, illustrate that UE transmission power is larger, uplink covering by
Limit is judged as that the weak covering of uplink leads to voice packet loss;If more than 5dBm, then step 5-2 is gone to;
Step 5-2, it compares MR.LteScSinrUL and illustrates that uplink interference is larger if more than 0dB, cause uplink packet loss, sentence
Breaking leads to voice packet loss for uplink interference.
Illustrate the concrete application situation of lower this method below with reference to two cases.
The bis- hinge building 1 A2_XD of case, three (facing) HLE_W covering difference leads to packet loss
User is checked in 10:57, uplink and downlink have packet loss in VoLTE call, influence user's communication matter
Amount.Checked from table 1 the received signal strength MR.LteScRSRP of the measurement item discovery UE that MR at that time reports by 65 (i.e.-
28 (i.e. -112dBm) 75dBm) are down to, and UE transmission power surplus MR.LteScPHR is down to 23 (i.e. by 56 (i.e. 23dB)
0dB).Illustrating that the downlink of user and uplink covering are limited leads to VoLTE business packet loss.On-the-spot test discovery is in two hinge buildings, three electricity
Covered in ladder it is poor, signal strength fluctuation it is larger, it is corresponding with above-mentioned analysis.
Table 1
2 town A2_JY Jin Yuan government north ZLF_H-2 pingpang handoff of case leads to packet loss
From the MR data of table 2 can see user over/under row packet loss when, main serving cell have occurred in a short time table tennis
Pang switching (referring to mono- column MR.LteScPci), results in voice service packet loss.
Table 2
Claims (2)
1. a kind of VoLTE analysis method based on measurement report, it is characterised in that the following steps are included:
Step 1, acquisition original sample class measurement report data, the data need to comprising MmeUeS1apId,
MR.LteScPlrDLQci1、MR.LteScPlrULQci1、MR.LteScRSRP、MR.LteNcRSRP、MR.LteNcPci、
MR.LteScPHR, MR.LteScSinrUL, extract sample class measurement report data in MR.LteScPlrDLQci1 or
MR.LteScPlrULQci1 is greater than 10% sampled point, and the sampled point extracted is high packet loss sampled point, adopts for VoLTE problem
Sampling point;Wherein, MmeUeS1apId is user's mark, is the mark number that MME distributes to UE;MR.LteScPlrDLQci1 reflection
UE receives the packet loss size of the downlink data of serving cell transmission, is the main indicator for reflecting downlink business quality;
The packet loss size for the upstream data that MR.LteScPlrULQci1 reflection UE is sent to serving cell is reflection uplink service matter
The main indicator of amount;MR.LteScRSRP reflection UE receives the Reference Signal Received Power size of serving cell, is reflection service
The main indicator of MPS process;MR.LteNcRSRP reflection UE is in the defined adjacent area received under some serving cell and closes
The size of the adjacent area Reference Signal Received Power of system and undefined neighboring BS relationship is the Primary Reference for determining switching;
MR.LteNcPci is the physical area identification code of defined neighboring BS relationship and undefined neighboring BS relationship, for indicating cell;
MR.LteScPHR reflects the UE transmission power surplus of serving cell, is emitted by the way that UE maximum transmission power 23-UE is arranged in network management
Power headroom, to calculate the transmission power of UE terminal;The letter of the MR.LteScSinrUL reflection received uplink signal of serving cell
It makes an uproar and compares, be the main indicator for reflecting cell uplink signal quality;
Step 2 checks whether user replaced main serving cell according to MmeUeS1apId, if replacing, illustrates packet loss constantly
Often switch problem, is judged as voice packet loss caused by switching;If not replacing, 3 are entered step;
Step 3, judgement be MR.LteScPlrDLQci1 be greater than 10% or MR.LteScPlrULQci1 be greater than 10%, if
MR.LteScPlrDLQci1 is greater than 10%, then carries out by step 4;If MR.LteScPlrULQci1 is greater than 10%, then by step
Rapid 5 carry out;
Step 4, MR.LteScPlrDLQci1 are greater than 10%, determine that downlink wireless environment goes wrong, are divided in the steps below
Analysis;
Step 4-1, MR.LteScRSRP is compared, if being less than or equal to -110dBm, illustrates that downlink covering is poor, is judged as downlink
Weak covering leads to voice packet loss;If more than -110dBm, then step 4-2 is gone to;
Step 4-2, MR.LteNcRSRP is compared, the sampled point of -3dBm higher than main serving cell is extracted, then compares these again
The MR.LteNcPci of sampled point illustrates main serving cell and neighboring area signal intensity phase if the MOD3 with main serving cell is identical
Closely, and there are MOD3 interference, and being judged as adjacent area and main serving cell, there are MOD3 interference to lead to voice packet loss;
Step 5, MR.LteScPlrULQci1 are greater than 10%, determine that up-link wireless environment goes wrong, are divided in the steps below
Analysis;
Step 5-1, MR.LteScPHR is compared, if being less than or equal to 5dB, illustrates that UE transmission power is larger, uplink covering is limited,
It is judged as that the weak covering of uplink leads to voice packet loss;If more than 5dB, then step 5-2 is gone to;
Step 5-2, it compares MR.LteScSinrUL and illustrates that uplink interference is larger if more than 0dB, cause uplink packet loss, be judged as
Uplink interference leads to voice packet loss.
2. the VoLTE analysis method according to claim 1 based on measurement report, it is characterised in that: in step 2 judgement be
The no mode for replacing main serving cell be check the MR.LteScEarfcn and MR.LteScPci of user, wherein
MR.LteScEarfcn is the carrier number of serving cell, indicates the frequency point of main serving cell;MR.LteScPci is serving cell
Physical area identification code determines specific cell for indicating main serving cell PCI, by user's main serving cell frequency point and
PCI was to determine whether occurred switching.
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CN108243448B (en) * | 2016-12-26 | 2021-04-27 | ***通信集团设计院有限公司 | Method and device for determining interference strength in cell system |
CN107766966B (en) * | 2017-09-19 | 2020-03-17 | 北京市天元网络技术股份有限公司 | Method and device for estimating network gap and investment of VoLTE business |
CN109996254A (en) * | 2017-12-30 | 2019-07-09 | ***通信集团湖北有限公司 | Voice service single-pass reason localization method, device, equipment and medium |
CN112087784B (en) * | 2019-06-13 | 2023-04-07 | ***通信集团浙江有限公司 | Pilot frequency switching method and device based on uplink coverage |
CN110649981B (en) * | 2019-09-25 | 2021-08-17 | 中国联合网络通信集团有限公司 | MOD3 interference processing method and equipment |
CN113133046B (en) * | 2019-12-30 | 2022-10-04 | ***通信集团四川有限公司 | Network coverage evaluation method and device, electronic equipment and computer storage medium |
CN113141658B (en) * | 2020-01-19 | 2022-08-23 | ***通信集团安徽有限公司 | Carrier configuration method and device based on 5G NSA voice call |
CN112203332B (en) * | 2020-09-27 | 2022-07-15 | 嘉环科技股份有限公司 | VoLTE accurate switching method and system based on user perception |
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