CN105007595A - System and method for determining GSM Refarming buffer zone - Google Patents
System and method for determining GSM Refarming buffer zone Download PDFInfo
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Abstract
The invention relates to a system and a method for determining a GSM Refarming buffer zone. The system comprises a network side data analysis system and a test system. The network side data analysis system is used for locating a practical signal coverage condition of each base station in the zone and analyzing a condition data parameter and determining quantity of the base station in the buffer zone; the test system is used for generating a dotting image and a distribution curve after processing the data and determining the GSM Refarming buffer zone. The system of the invention can rationally determine the buffer zone under the condition of ensuring GSM network coverage and network performance after GSM Refarming distributes a portion of frequencies in certain range. The test system can rationally determine the range of the buffer zone, reduces the interference between an inner ring LTE and an outer ring GSM system, and improve frequency spectrum utilization efficiency. By combining the network side data analysis system with the test system, the system and the method of the invention can determine the quantity of the buffer zone more accurately.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to the system and method determining GSM Refarming buffering area.
Background technology
Dispose the motion statistics of LTE according to each large operation in the whole world, the Frequency Band Selection strategy that LTE commercialization is disposed considers mode for main two kinds: one is adopt brand-new frequency range to dispose LTE.Two is realize LTE based on existing 2G/3G frequency range by Refarming technology to dispose.Because universal, the user of intelligent terminal is to the migration of next generation network, the network load of GSM 900 and GSM 1800 voice-bearer alleviates gradually, therefore operator starts the frequency spectrum of 900MHz and 1800MHz being originally used for 2G GSM network to discharge, and adopts Refarming technology to be used for more advanced LTE network carrying.GSM Refarming distributes one section to use to LTE from GSM frequency spectrum, comprise the planning again to GSM network and the deployment of LTE New-deployed Network, realizing disposing 4G network when not increasing frequency spectrum resource, promoting data services capability, ensureing the impact of former GSM network minimum simultaneously.As shown in Figure 1, in force, generally data traffic requirement region is being had, following three Layer: the layer 1(inner ring of definition), this circle GSM/LTE co-sited website forms, and is formed and covers in flakes
。Layer 2(boundary belt) i.e. buffering area (GSM Buffer).Inner ring broadband evolution technology institute dedicated bandwidth is not re-used, to reduce the interference between GSM and broadband evolution technology at layer 2, GSM.Layer 3(outer ring) be the normal deployment region of GSM.In traditional setting buffers scheme, buffering region layer 2(boundary belt) scope determine based on emulation.The shortcoming of this mode is as follows: although the propagation model of selection is through overcorrect, also just based on a kind of statistics, can not reach and mate completely with the actual conditions in this region; Emulation tool is also a kind of result of calculation based on static state, realistic simulation can not go out actual user's situation.If adopt simple analyzing with drive test data, also there is following shortcoming: drive test is limited in scope, simple drive test can not reach all regions of traversal.Drive test is general only based on the test result of single user.
Summary of the invention
The object of this invention is to provide a kind of system and method determining GSM Refarming buffering area, for rationally determining the quantity of buffering area website.
In order to solve prior art Problems existing, the technical solution used in the present invention is:
Determine the system of GSM Refarming buffering area, comprising:
Network side data analytical system, the definition of network side data analytical system has NCS function, for obtaining the measurement report of network foundation configuration data and mobile terminal reporting; Obtain the signal strength signal intensity of certain community described as Serving cell and the signal strength signal intensity as tested community; Each base station actual signal coverage condition in locating area is also analyzed this situation data parameters, determines the quantity of base station in buffering area;
Test macro, for record data, and carries out association process to related data, generates and gets figure and distribution curve ready, determine GSM Refarming buffering area after processing data.
Described network side data analytical system, includes:
Acquisition module, for obtaining the measurement report of network foundation configuration data and mobile terminal reporting;
Acquisition module, for obtaining the signal strength signal intensity of certain community described as Serving cell and the signal strength signal intensity as tested community;
Locating module, for network foundation configuration data described in data acquired by acquisition module and acquisition module, locates each base station actual signal coverage condition in a panel region;
Analysis module, in this region that region gathered and obtained of mainly locating for locating module, data parameters is analyzed, and obtains conclusion, is then determined the quantity of base station in buffering area by the certain threshold value of definition.
Described test macro, includes:
Driver test system, be connected with test terminal, GPS receiving equipment, for showing, recording the layer 1 of terminal, layer 2 and high-level signaling and control data, display, record gps time, longitude and latitude, the time of GPS receiving equipment record, longitude and latitude are correctly associated with terminal record data, for terminal record data provide geographical position;
Test terminal, for measurement, display and recording layer 1, layer 2 and layer 3 signaling and control data;
GPS receiving equipment, for display, writing time and longitude and latitude; For sweep generator, terminal recorded data provide absolute time and geographical position;
Later stage drive test treatment system, generates and gets figure and distribution curve ready, determine GSM Refarming buffering area after processing data;
Sweep generator, determines by full band scan the website that there is interference, carries out the investigation of done site by site;
WiFi terminal, accessible broadband evolution technology, changes into WiFi network by CPE by signal.
Determine the method for GSM Refarming buffering area, comprising:
S1: in network side data analytical system definition NCS function, defined range comprises all regions of layer 1, layer 2, layer 3, and region is large as far as possible;
S2: the measurement report obtaining network foundation configuration data and mobile terminal reporting; Obtain the signal strength signal intensity of certain community described as Serving cell and the signal strength signal intensity as tested community; Each base station actual signal coverage condition in locating area is also analyzed this situation data parameters, determines the quantity of base station in buffering area;
S3: display, the layer 1 recording terminal, layer 2 and high-level signaling and control data, display, record gps time, longitude and latitude, the time of GPS receiving equipment record, longitude and latitude are correctly associated with terminal record data, for terminal record data provide geographical position; Measurement, display and recording layer 1, layer 2 and layer 3 signaling and control data; Rear generation is processed to data and gets figure and distribution curve ready, determine GSM Refarming buffering area.
The advantage that the present invention has and effect are:
The present invention determines that the system and method for GSM Refarming buffering area can after GSM Refarming distributes a part of frequency within the specific limits, when ensure GSM network cover and network performance rationally determine buffering area.Test macro rationally can determine the scope of buffering area, reduces the interference between inner ring LTE and outer ring gsm system, improves spectrum utilization efficiency.Network side data analytical system is combined with test macro, determines the quantity of buffering area more accurately.
accompanying drawing illustrates:
Fig. 1 is Region dividing schematic diagram;
Fig. 2 is the system architecture diagram that the present invention determines GSM Refarming buffering area;
Fig. 3 is the method flow diagram that the present invention determines GSM Refarming buffering area.
embodiment:
As shown in Figure 2, determine the system of GSM Refarming buffering area, comprising:
Network side data analytical system, the definition of network side data analytical system has NCS function, for obtaining the measurement report of network foundation configuration data and mobile terminal reporting; Obtain the signal strength signal intensity of certain community described as Serving cell and the signal strength signal intensity as tested community; Each base station actual signal coverage condition in locating area is also analyzed this situation data parameters, determines the quantity of base station in buffering area;
NCS full name: Neighbor Cell Support, NCS utilize the mobile phone of user to go the signal strength signal intensity of the measurement frequency measuring definition, and the measurement frequency of definition can be the frequency of non-neighbor cell.By the interim measurement frequency in the BA-LIST of periodic variation community, can obtain a large amount of measurement report measuring frequency, very valuable original measurement report data can be obtained.
NCS is actually the data after have collected cell localization (LOCATING) computing.The measurement report of MS and BTS has: the signal strength signal intensity of the signal strength signal intensity of the down link that MS sends at SACCH and the error rate, adjacent six Ge Qiang communities.Signal strength signal intensity, BER, TA value of the up link that BTS measures.NCS is exactly some data be recorded in positions calculations process, these data are base unit with BCCH/BSIC, mainly comprise: carrying out the measurement report number in NCS measuring process, becoming the number of times of six Ge Qiang communities and corresponding signal strength signal intensity, average signal strength etc.
Test macro, for record data, and carries out association process to related data, generates and gets figure and distribution curve ready, determine GSM Refarming buffering area after processing data.
Described network side data analytical system, includes:
Acquisition module, for obtaining the measurement report of network foundation configuration data and mobile terminal reporting;
Acquisition module, for obtaining the signal strength signal intensity of certain community described as Serving cell and the signal strength signal intensity as tested community;
Locating module, for network foundation configuration data described in data acquired by acquisition module and acquisition module, locates each base station actual signal coverage condition in a panel region;
Analysis module, in this region that region gathered and obtained of mainly locating for locating module, data parameters is analyzed, and obtains conclusion, is then determined the quantity of base station in buffering area by the certain threshold value of definition.
Described test macro, includes:
Driver test system, be connected with test terminal, GPS receiving equipment, for showing, recording the layer 1 of terminal, layer 2 and high-level signaling and control data, display, record gps time, longitude and latitude, the time of GPS receiving equipment record, longitude and latitude are correctly associated with terminal record data, for terminal record data provide geographical position;
Test terminal, for measurement, display and recording layer 1, layer 2 and layer 3 signaling and control data; Comprise: RSRP, RSRQ, SINR, CQI, MCS, MIMO method, RRC signaling etc., wherein the every 200ms of parameter support such as RSRP, RSRQ, SINR at least exports once, and requires that SINR is based on the mean value in output gap; The every 10ms(radio frames of the parameter supports such as CQI) at least export once; The every 1ms(subframe of the parameter such as MCS, MIMO method support) export once, corresponding, the SINR that the drive test terminal cycle exports, MCS, MIMO method is necessary for the mean value in output gap.
GPS receiving equipment, for display, writing time and longitude and latitude; Time, the longitude and latitude data of GPS receiving equipment record accurately should be able to correlate with sweep generator, drive test terminal record data, for sweep generator, terminal recorded data provide absolute time and geographical position;
Sweep generator, determines by full band scan the website that there is interference, carries out the investigation of done site by site;
Later stage drive test treatment system, gets figure ready for generating RSRP/RSRQ/SINR on test route, the PDF/CDF distribution curve etc. of RSRP/RSRQ/SINR.The original test data considering drive test terminal, GPS receiving equipment generally stores by cycle time recording, because the speed of a motor vehicle is uneven and the reason such as stop-for-waiting, causes different sections of highway to make average per unit different apart from upper sample points because speed differs.Therefore generate the PDF/CDF distribution obtained, the sample points in unit distance is the same, accurately to reflect geographic covering performance, determines GSM Refarming buffering area;
WiFi terminal, accessible broadband evolution technology, changes into WiFi network by CPE by signal.
As shown in Figure 3, determine the method for GSM Refarming buffering area, comprising:
S1: in network side data analytical system definition NCS function, defined range comprises all regions of layer 1, layer 2, layer 3, and region is large as far as possible;
S2: the measurement report obtaining network foundation configuration data and mobile terminal reporting; Obtain the signal strength signal intensity of certain community described as Serving cell and the signal strength signal intensity as tested community; Each base station actual signal coverage condition in locating area is also analyzed this situation data parameters, determines the quantity of base station in buffering area;
S3: display, the layer 1 recording terminal, layer 2 and high-level signaling and control data, display, record gps time, longitude and latitude, the time of GPS receiving equipment record, longitude and latitude are correctly associated with terminal record data, for terminal record data provide geographical position; Measurement, display and recording layer 1, layer 2 and layer 3 signaling and control data; Rear generation is processed to data and gets figure and distribution curve ready, determine GSM Refarming buffering area.
Below to the method more detailed description determining GSM Refarming buffering area:
First in network side definition NCS function, defined range comprises all regions of Lyaer1, Lyaer2, the Lyaer3 shown in legend, and region is large as far as possible.
Before GSM refarming part frequency gives broadband evolution technology, key property test is carried out for all GSM communities (Layer1/2/3) shown in Fig. 1.
Test macro carries out traversal test at test zone, and audio call is initiated in test terminal, and voice call is hung up after lasting 45S, re-establishes calling after the 15S of interval, repeats above step at least 10 times.Test after by the later stage drive test treatment system statistics audio call success rate and cutting off rate, GSM downstream signal intensity (RxLevel), C/I, voice MOS value (or up-downgoing BLER) etc.
Network side data analytical system, record existing network frequency range and channeling situation; In statistics week age, make an uproar and disturbed condition in the up end of base station, and these data are based on the statistics of NCS; The call completing rate, drop rate, handover success rate, data service call completing rate, drop rate, handover success rate etc. of the speech business of base station in statistics week age.
Comprehensively analyze network side data analytical system and test macro data parameters, network side data analytical system is mainly for the analysis of the measurement report of MS and BTS: the signal strength signal intensity analyzing the signal strength signal intensity of the down link that MS sends at SACCH and the error rate, adjacent six Ge Qiang communities.Signal strength signal intensity, BER, TA value of the up link that BTS measures.Wherein uplink signal strength is not used in location, but is applicable to up dynamic power control.NCS is exactly some data be recorded in positions calculations process, these data are base unit with BCCH/BSIC, mainly comprise: carrying out the measurement report number in NCS measuring process, becoming the number of times of six Ge Qiang communities and corresponding signal strength signal intensity, average signal strength etc.Pass through on-the-spot test, be directly acquainted with the actual conditions of network, the actual conditions such as downstream signal intensity (RxLev), C/I, voice MOS value (or up-downgoing BLER) of Web vector graphic audio call success rate and cutting off rate, GSM, according to fieldtesting results, in conjunction with network management data configuring condition, to needing the network of adjustment to carry out parameter adjustment amendment, allowing this Internet resources Appropriate application, playing network trap greatly to the greatest extent.
Re-start frequency planning to gsm system, use to the broadband evolution technology website of Layer 1 to vacate certain bandwidth refarming, at guard circle (Layer 2), GSM does not use and vacates bandwidth.(the broadband evolution technology protection of Layer 1 GSM/ is spaced apart 200 KHz to examine or check Layer1, Layer2, Layer3 GSM key property respectively.
The adjustment of GSM frequency is carried out in community for Layer 1/2, vacates 5 MHz/10 MHz and uses to broadband evolution technology, and records the GSM frequency utilization situation that Layer 1/2 planned again.
Open all broadband evolution technology websites in Layer 1, Layer 2 vacates this 5 MHz/10 MHz frequency range, and ensures at test zone, and the frequency guard bands of GSM and broadband evolution technology is 200 KHz.
After determining buffering area, under the prerequisite ensureing GSM network spectrum requirement, carry out frequency spectrum and dynamically share the shared utilization of the maximization realizing frequency spectrum resource, continue to greatest extent to promote network spectrum efficiency, meet the demand of Future broadband data service.Dynamic spectrum planning is exactly as share spectrum resources using part GSM frequency spectrum resource.GSM and LTE can carry out dynamic dispatching and adjustment according to the traffic of existing network and data traffic demand, and by website evaluation and planning, dynamic spectrum planning and designing, parameter designing and configuration, GSM frequency weight-normality is drawn and realized the utilization of GL network spectrum resource dynamic.While preferentially ensureing that GSM frequency spectrum resource uses by the network optimization, adjustment and test, increase LTE available spectrum resources to greatest extent, effectively promote spectrum efficiency.
Claims (4)
1. determine the system of GSM Refarming buffering area, it is characterized in that, comprising:
Network side data analytical system, the definition of network side data analytical system has NCS function, for obtaining the measurement report of network foundation configuration data and mobile terminal reporting; Obtain the signal strength signal intensity of certain community described as Serving cell and the signal strength signal intensity as tested community; Each base station actual signal coverage condition in locating area is also analyzed this situation data parameters, determines the quantity of base station in buffering area;
Test macro, for record data, and carries out association process to related data, generates and gets figure and distribution curve ready, determine GSM Refarming buffering area after processing data.
2. the system determining GSM Refarming buffering area according to claim 1, is characterized in that, described network side data analytical system, includes:
Acquisition module, for obtaining the measurement report of network foundation configuration data and mobile terminal reporting;
Acquisition module, for obtaining the signal strength signal intensity of certain community described as Serving cell and the signal strength signal intensity as tested community;
Locating module, for network foundation configuration data described in data acquired by acquisition module and acquisition module, locates each base station actual signal coverage condition in a panel region;
Analysis module, in this region that region gathered and obtained of mainly locating for locating module, data parameters is analyzed, and obtains conclusion, is then determined the quantity of base station in buffering area by the certain threshold value of definition.
3. the system determining GSM Refarming buffering area according to claim 1, is characterized in that, described test macro, includes:
Driver test system, be connected with test terminal, GPS receiving equipment, for showing, recording the layer 1 of terminal, layer 2 and high-level signaling and control data, display, record gps time, longitude and latitude, the time of GPS receiving equipment record, longitude and latitude are correctly associated with terminal record data, for terminal record data provide geographical position;
Test terminal, for measurement, display and recording layer 1, layer 2 and layer 3 signaling and control data;
GPS receiving equipment, for display, writing time and longitude and latitude; For sweep generator, terminal recorded data provide absolute time and geographical position;
Later stage drive test treatment system, generates and gets figure and distribution curve ready, determine GSM Refarming buffering area after processing data;
Sweep generator, determines by full band scan the website that there is interference, carries out the investigation of done site by site;
WiFi terminal, accessible broadband evolution technology, changes into WiFi network by CPE by signal.
4. determine the method for GSM Refarming buffering area, it is characterized in that, comprising:
S1: in network side data analytical system definition NCS function, defined range comprises all regions of layer 1, layer 2, layer 3, and region is large as far as possible;
S2: the measurement report obtaining network foundation configuration data and mobile terminal reporting; Obtain the signal strength signal intensity of certain community described as Serving cell and the signal strength signal intensity as tested community; Each base station actual signal coverage condition in locating area is also analyzed this situation data parameters, determines the quantity of base station in buffering area;
S3: display, the layer 1 recording terminal, layer 2 and high-level signaling and control data, display, record gps time, longitude and latitude, the time of GPS receiving equipment record, longitude and latitude are correctly associated with terminal record data, for terminal record data provide geographical position; Measurement, display and recording layer 1, layer 2 and layer 3 signaling and control data; Rear generation is processed to data and gets figure and distribution curve ready, determine GSM Refarming buffering area.
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