CN105959976B - VoLTE analysis method based on measurement report - Google Patents

VoLTE analysis method based on measurement report Download PDF

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CN105959976B
CN105959976B CN201610574570.0A CN201610574570A CN105959976B CN 105959976 B CN105959976 B CN 105959976B CN 201610574570 A CN201610574570 A CN 201610574570A CN 105959976 B CN105959976 B CN 105959976B
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serving cell
packet loss
uplink
judged
downlink
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CN105959976A (en
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张华�
常峰
刘文吉
姚坤
郭鹏
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Guojiao New Adhesive Materials Industrial Park Management Co ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0231Traffic management, e.g. flow control or congestion control based on communication conditions

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

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

VoLTE analysis method based on measurement report
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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