CN103108341A - Method and device based on measurement report data and for constructing network uploading interference matrix - Google Patents
Method and device based on measurement report data and for constructing network uploading interference matrix Download PDFInfo
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- CN103108341A CN103108341A CN2011103527022A CN201110352702A CN103108341A CN 103108341 A CN103108341 A CN 103108341A CN 2011103527022 A CN2011103527022 A CN 2011103527022A CN 201110352702 A CN201110352702 A CN 201110352702A CN 103108341 A CN103108341 A CN 103108341A
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Abstract
The invention discloses a method and a device based on measurement report (MR) data and for constructing network uploading interference matrix. The method comprises that a building automation (BA) form preset by a housing estate is edited and is output to a memory system (MS) in the housing estate; MR data is obtained through measurement by the MS in each service housing estate according to the BA form received; segmenting count is performed according to each MS uploading electric level in the MR data so that an uploading electric level normal distribution function of the service housing estate is established; according to a downloading point of the network service housing estate and a uploading point of an adjacent housing estate, an uploading road damage correcting value and a downloading road damage correcting value are obtained; uploading electric level of transmitted power of the adjacent housing estate MS in the position of a base transceiver station (BTS) of the service housing estate is obtained according to the MR data so that an interference normal distribution function to the service housing estate from each adjacent housing estate is established; according to the interference normal distribution function to the service housing estate from each adjacent housing estate and the uploading electric level normal distribution function of the service housing estate, same and adjacent channel interference telephone traffic among the housing estates are calculated. According to the method and the device, uploading interference conditions and total interference of an optimized network among the housing estates are estimated.
Description
Technical field
The present invention relates to the mobile communication network optimization technology, particularly a kind of method and device based on measurement report (MR, Measurement Report) data construct network uplink interference matrix.
Background technology
in the daily operation of network, frequency need to be adjusted along with the variation of coverage internal traffic and communication environments in the distribution of minizone, interference matrix (IM, Interface Matrix) as the parameter of weighing correlation between the residential quarter, the degree of correlation of adjacent cell and Serving cell is described by the interference matrix characteristic value, and calculate based on the quantification that the statistical relationship of minizone carries out to a certain degree, obtain a corresponding characteristic value numerical value, thereby by the size reflection adjacent cell of characteristic value numerical value and the correlation of Serving cell, by interference matrix generated frequency allocation plan, then pass through the heavily distribution of frequency, can minimize total interference of whole network.
interference matrix builds by the MR data, the MR data refer to as the user in communication process, travelling carriage (MS, Mobile Station) residential quarter (Serving cell) level information at every this MS place that reported one-shot measurement in 0.48 second and 6 residential quarter (adjacent cell) level information adjacent with the residential quarter at this MS place, and base transceiver station (BTS, Basic Transmission Station) the up level information of this MS received of side joint, in below describing, the residential quarter at MS place is called Serving cell, the residential quarter adjacent with the residential quarter at this MS place is called adjacent cell.
Fig. 1 is the schematic diagram that MS reports the MR data.Referring to Fig. 1, BTS in the residential quarter is by sending control information to MS, require MS to report the MR data message, the MS receiving control information, measure, return to the MR data message to BTS, comprise in Serving cell level information, 6 adjacent cell level informations and Serving cell the up level information of MS etc., so that network side, for example, base station controller (BSC, Base Station Controller) is optimized with the total interference to network according to the MR data construct interference matrix of MS in each residential quarter that receives.
Existing method based on MR data construct interference matrix, the Serving cell level information that mainly receives based on MS and 6 adjacent cell level informations carry out, owing to all measuring by MS, be referred to as the down-run survey signal, the interference matrix that builds by the down-run survey signal can more accurately be weighed descending with adjacent disturbed condition frequently between Serving cell that the frequency configuration scheme brings and adjacent cell, but can't assess out Serving cell that the frequency configuration scheme brings and the same adjacent uplink interference situation frequently between adjacent cell.That is to say, for a new global system for mobile communications (GSM, Global System for Mobilecommunications) network allocation plan, before scheme implementation, can assess out the frequency configuration scheme to the situation of descending interference by scheme shown in Figure 1, but can't assess out the impact on uplink interference, thereby, how to build at present the uplink interference matrix and also be in blank in industry to assess out uplink interference, make the effect of total interference of optimized network more undesirable.
Summary of the invention
In view of this, main purpose of the present invention is to propose a kind of method that builds network uplink interference matrix based on measurement report data, assesses the uplink interference situation between the residential quarter, total interference of optimized network.
Another object of the present invention is to propose a kind of device that builds network uplink interference matrix based on measurement report data, assess the uplink interference situation between the residential quarter, total interference of optimized network.
For achieving the above object, the invention provides a kind of method that builds network uplink interference matrix based on measurement report data, the method comprises:
The Broadcast Control Channel that sets in advance of editor residential quarter is distributed the BA table, and exports editor's BA table in this residential quarter mobile station MS;
Obtain the MR data that in each Serving cell, MS measures according to the BA table that receives;
According to the measuring period that sets in advance, the upper line level of each MS that in the MR data that report according to MS in Serving cell, base transceiver station BTS measures carries out the segmentation statistics, builds the up level information normal distyribution function of Serving cell;
According to the downlink frequency dot information of network service district and the up frequency point information of adjacent cell, obtain up-downgoing path loss correction value;
Upper line level according to the transmitting power of MR data acquisition adjacent cell MS receives at Serving cell BTS place builds each adjacent cell to the interference normal distyribution function of Serving cell;
According to interference normal distyribution function and the Serving cell up level information normal distyribution function of each adjacent cell to Serving cell, the same adjacent telephone traffic of frequently disturbing between calculation plot.
The BA table that described editor residential quarter sets in advance comprises:
Inquire about the BA table that this residential quarter sets in advance, if having the room in the BA table, in the BA table that sets in advance, with arrange do not shown by BA in the BCCH channel of broadcast control frequency that comprises of adjacent cell add in room in the BA table; If do not have the room in the BA table, do not deal with.
Obtain described MR data by monitoring signaling from the ABIS interface between BTS and base station controller BSC.
Described MR data comprise: the upper line level of the measurement level of the descending level of Serving cell, MS transmitting power, adjacent cell, BTS transmitting power and MS.
Described segmentation statistics comprises:
Obtain the distributed area of the upper line level of each MS, as the abscissa of trunnion axis;
Add up respectively the MR number corresponding to value of the upper line level of each MS on trunnion axis, as the ordinate of vertical axis.
The up level information normal distyribution function of described structure Serving cell comprises:
The mean value of the upper line level of each MS on the statistics trunnion axis is as the desired value of normal distyribution function;
Ordinate corresponding to the up level value of each MS on the mean value of line level upper according to each MS, statistics and vertical axis calculates the upward standard variance of line level of MS, as the standard variance of normal distyribution function.
Described up-downgoing path loss correction value computing formula is:
DeltaPL＝26.16(lgf
DL-lgf
UL)
In formula,
DeltaPL is up-downgoing path loss correction value,
f
DLBe the descending frequency of Serving cell,
f
ULUp frequency for adjacent cell.
Further comprise:
The described up-downgoing path loss correction value that calculates is stored in the look-up table mode.
Described transmitting power according to MR data acquisition adjacent cell MS comprises at the upper line level of Serving cell BTS place's reception:
Calculation services residential quarter BTS is to the path loss at adjacent cell MS place;
According to the up-downgoing path loss correction value of the Serving cell BTS that calculates to the path loss at adjacent cell MS place and Serving cell BTS to adjacent cell MS, calculating adjacent cell MS is transmitted into the path loss at Serving cell BTS place;
Be transmitted into MS transmitting power in the MR data that path loss, Serving cell BTS antenna gain and the adjacent cell MS at Serving cell BTS place report based on adjacent cell MS, calculate adjacent cell MS at the level at Serving cell BTS place.
Described calculation services residential quarter BTS to the formula of the path loss at adjacent cell MS place is:
PL
AC＝BTS_POW
A+Antenna_Gain
A-NB
CA
Wherein,
PL
ACBe the path loss of Serving cell BTS to adjacent cell MS place;
BTS_POW
ATransmitting power for Serving cell BTS;
Antenna_Gain
ABe Serving cell BTS antenna gain;
NB
CAThe measurement level of the Serving cell BTS that comprises in the MR data that report for adjacent cell MS.
The formula that described calculating adjacent cell MS is transmitted into the path loss at Serving cell BTS place is:
PL
CA＝PL
AC-deltaPL
AC
deltaPL
AC＝26.16(lgf
DL-lgf
UL)
Wherein,
PL
CABe transmitted into the path loss at Serving cell BTS place for adjacent cell MS;
DeltaPL
ACBe the up-downgoing path loss correction value of Serving cell BTS to adjacent cell MS.
Described adjacent cell MS in the level computing formula at Serving cell BTS place is:
UL_LEV
CA＝MS_POW
C-PL
CA+Antenna_Gain
A
In formula,
UL_LEV
CABe the level of adjacent cell MS at Serving cell BTS place;
MS_POW
CBe adjacent cell MS transmitting power.
Each adjacent cell of described structure comprises the interference normal distyribution function of Serving cell:
Calculate respectively each adjacent cell MS at the level at Serving cell BTS place, add up each adjacent cell MS at the mean value of the level at Serving cell BTS place as the desired value of this adjacent cell to the interference normal distyribution function of Serving cell, add up each adjacent cell MS at the standard variance of the level at Serving cell BTS place as the standard variance of this adjacent cell to the interference normal distyribution function of Serving cell.
Described according to interference normal distyribution function and the Serving cell up level information normal distyribution function of each adjacent cell to Serving cell, the same adjacent frequency between calculation plot disturbs telephone traffic to comprise:
According to interference normal distyribution function and the Serving cell up level information normal distyribution function of adjacent cell to Serving cell, obtain this adjacent cell to the interference effect normal distyribution function of Serving cell;
According to each adjacent cell, the interference effect normal distyribution function of Serving cell is built adjacent cell to the relational matrix that affects of Serving cell;
Disturb telephone traffic according to the same adjacent frequency that affects between the relational matrix calculation plot that builds.
Describedly frequently disturb telephone traffic to comprise with adjacent: adjacent cell is to the co-channel interference telephone traffic of Serving cell and the adjacent cell adjacent telephone traffic of frequently disturbing to Serving cell.
Described co-channel interference telephone traffic is calculated formula:
Erlan12
AB＝P12
ABxErlan
A
Wherein,
Erlan12
ABIt is the co-channel interference telephone traffic;
P12
ABThat the value of vertical axis ordinate in the interference effect normal distyribution function is less than the traffic probability of co-channel interference thresholding;
Erlan
AIt is the Serving cell telephone traffic.
The described adjacent telephone traffic calculating formula that frequently disturbs is:
Erlan6
AB＝P′
6ABxErlan
A
Wherein,
Erlan6
ABIt is the adjacent telephone traffic of frequently disturbing;
P′
6ABThat the value of vertical axis ordinate in the interference effect normal distyribution function is less than the traffic probability of neighbour's frequency interference threshold;
Erlan
AIt is the Serving cell telephone traffic.
A kind of device based on measurement report MR data construct network uplink interference matrix, this device comprises: Broadcast Control Channel (BCCH, Broadcast Control Channel) distribute BA scheduler module, MR data collection module, Serving cell level distribution to build module, up path loss compensating module, adjacent cell interference profile structure module and interference matrix and build module, wherein
The BA scheduler module is used for the BA table that the editor residential quarter sets in advance, and exports editor's BA table in this residential quarter MS, so that the MS this residential quarter in shows to measure according to the BA that receives;
The MR data collection module is used for obtaining the MR data that the editor's that MS in each Serving cell issues according to the BA scheduler module BA table measures;
The Serving cell level distribution builds module, is used for according to the measuring period that sets in advance, and the upper line level of each MS that in the MR data that report according to MS in Serving cell, BTS measures carries out the segmentation statistics, builds the up level information normal distyribution function of Serving cell;
Up path loss compensating module is used for according to the downlink frequency dot information of network service district and the up frequency point information of adjacent cell, obtains up-downgoing path loss correction value;
The adjacent cell interference profile builds module, is used for according to the transmitting power of the MR data acquisition adjacent cell MS upper line level in Serving cell BTS place reception;
Interference matrix builds module, is used for building according to the Serving cell level distribution normal distyribution function of module and the output of adjacent cell interference level distribution structure module, the same adjacent telephone traffic of frequently disturbing between calculation plot.
Described MR data collection module is collected the MR data by monitoring signaling from the ABIS interface between BTS and base station controller.
Described adjacent cell interference profile builds module and comprises: the first computing unit, the second computing unit and the 3rd computing unit, wherein,
The first computing unit is used for calculation services residential quarter BTS to the path loss at adjacent cell MS place;
The second computing unit is used for the up-downgoing path loss correction value to the path loss at adjacent cell MS place and Serving cell BTS to adjacent cell MS according to the Serving cell BTS that calculates, and calculating adjacent cell MS is transmitted into the path loss at Serving cell BTS place;
The 3rd computing unit is transmitted into MS transmitting power in the MR data that path loss, Serving cell BTS antenna gain and the adjacent cell MS at Serving cell BTS place report based on adjacent cell MS, calculates adjacent cell MS at the level at Serving cell BTS place.
Described interference matrix builds module and comprises: interference effect normal distyribution function construction unit, affect the relational matrix construction unit and with the adjacent telephone traffic calculating unit of frequently disturbing, wherein,
Interference effect normal distyribution function construction unit according to interference normal distyribution function and the Serving cell up level information normal distyribution function of adjacent cell to Serving cell, obtains this adjacent cell to the interference effect normal distyribution function of Serving cell;
Affect the relational matrix construction unit, according to each adjacent cell, the interference effect normal distyribution function of Serving cell is built adjacent cell to the relational matrix that affects of Serving cell;
Frequently disturb telephone traffic to calculate the unit with the neighbour, disturb telephone traffic according to the same adjacent frequency that affects between the relational matrix calculation plot that builds.
Describedly frequently disturb telephone traffic to calculate the unit to comprise with adjacent: co-channel interference telephone traffic computation subunit and adjacently frequently disturb the telephone traffic computation subunit, wherein,
Co-channel interference telephone traffic computation subunit, be used for obtaining the value of interference effect normal distyribution function vertical axis ordinate less than the co-channel interference traffic probability of co-channel interference thresholding, obtain the co-channel interference telephone traffic according to the co-channel interference traffic probability that obtains and pre-stored Serving cell telephone traffic calculating;
The adjacent telephone traffic computation subunit of frequently disturbing, be used for obtaining the value of interference effect normal distyribution function vertical axis ordinate less than the traffic probability of neighbour's frequency interference threshold, disturb traffic probability and pre-stored Serving cell telephone traffic calculating to obtain adjacent frequency according to the adjacent frequency that obtains and disturb telephone traffic.
As seen from the above technical solutions, a kind of method and device that builds network uplink interference matrix based on measurement report data provided by the invention, the BA table that the editor residential quarter sets in advance, and export editor's BA table in this residential quarter MS; Obtain the MR data that in each Serving cell, MS measures according to the BA table that receives; According to the measuring period that sets in advance, the upper line level of each MS that in the MR data that report according to MS in Serving cell, BTS measures carries out the segmentation statistics, builds the up level information normal distyribution function of Serving cell; According to the downlink frequency dot information of network service district and the up frequency point information of adjacent cell, obtain up-downgoing path loss correction value; Upper line level according to the transmitting power of MR data acquisition adjacent cell MS receives at Serving cell BTS place builds each adjacent cell to the interference normal distyribution function of Serving cell; According to interference normal distyribution function and the Serving cell up level information normal distyribution function of each adjacent cell to Serving cell, the same adjacent telephone traffic of frequently disturbing between calculation plot.Like this, can assess the uplink interference situation between the residential quarter, according to the uplink interference situation between the residential quarter that calculates and in conjunction with existing descending disturbed condition, realize that new frequency configuration scheme is with total interference of optimized network.
Description of drawings
Fig. 1 is the schematic diagram that MS reports the MR data.
Fig. 2 is that the embodiment of the present invention builds the apparatus structure schematic diagram of network uplink interference matrix based on measurement report data.
Fig. 3 is embodiment of the present invention adjacent area interference profile schematic diagram.
Fig. 4 is that the embodiment of the present invention builds the method flow schematic diagram of network uplink interference matrix based on measurement report data.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
In prior art, the descending interference matrix that builds has only been considered the down-run survey signal, be the descending level of Serving cell and 6 adjacent cell level that MS receives, but in practical application, in Serving cell, the upper line level such as the transmitting power of MS and the transmitting power of adjacent cell MS also can cause interference to network, thereby affect the frequency configuration scheme, make the distribution of frequency in the minizone can not reach optimum.
In the embodiment of the present invention, take the MR data as the basis, statistics, the upper line level of calculation services residential quarter MS and the upper line level of adjacent cell MS according to both difference structure uplink interference matrixes, namely build all MS of adjacent cell to the up same adjacent traffic that frequently disturbs between all MS of Serving cell.Wherein, the upper line level of Serving cell MS is the intensity level that the serviced residential quarter BTS of wireless signal of Serving cell MS emission receives, and the upper line level of adjacent cell MS is the intensity level that the serviced residential quarter BTS of wireless signal of adjacent cell MS emission receives.Like this, can calculate the uplink interference situation between the residential quarter, and according to the uplink interference situation that calculates in conjunction with aforesaid descending disturbed condition, realize that new frequency configuration scheme is with total interference of optimized network.
In the embodiment of the present invention, the target that builds the uplink interference matrix be set up with the quantification residential quarter between the uplink interference relation.for instance, if there is A, B, three residential quarters of C, due to the user in residential quarter B or residential quarter C in when conversation, user's MS needs transmitting power to keep proper communication, thereby, for the BTS in the A of residential quarter, can receive the interference signal of the MS transmitting power in communication process just from residential quarter B or residential quarter C, namely at transceiver (TRX, Transmitter and Receiver) locate to receive uplink interference signal, in order to assess user's communication in residential quarter B or residential quarter C to the up impact of residential quarter A, can build the uplink interference matrix, thereby by the uplink interference matrix, the up impact of user's communication in residential quarter B and residential quarter C on residential quarter A can be described.
Fig. 2 is that the embodiment of the present invention builds the apparatus structure schematic diagram of network uplink interference matrix based on measurement report data.Referring to Fig. 2, this device comprises: Broadcast Control Channel (BCCH, Broadcast ControlChannel) allocation schedule module (BA scheduler module), MR data collection module, Serving cell level distribution build module, up path loss compensating module, the adjacent cell interference profile builds module and interference matrix builds module, at first by the BA scheduler module, network is carried out the BA scheduling, to guarantee to collect the level information of required related cell; Then utilize the MR data collection module from network collection MR data; Afterwards the MR data are resolved, obtain respectively the up level information of Serving cell and adjacent cell MS at the up level information at Serving cell BTS place, build module at interference matrix at last and ask difference to obtain Serving cell uplink interference matrix to the level information that obtains.Wherein,
The BA scheduler module is used for the BA table that the editor residential quarter sets in advance, and exports editor's BA table in this residential quarter MS, so that the MS this residential quarter in shows to measure according to the BA that receives;
In the embodiment of the present invention, the BA that sets in advance table be the frequency that arranges of prior art frequency configuration scheme at the allocation table of minizone, the detailed process of frequency point allocation can referring to the correlation technique document, not repeat them here.
In the BA table that residential quarter sets in advance, be provided with 6 residential quarter BCCH frequency point information adjacent with this residential quarter, the BTS at place, residential quarter informs that by issuing the BA table in Serving cell, MS measures according to the BCCH frequency point information of 6 adjacent cells that arrange, obtain respectively its level information, namely MS only measures the level information of 6 default adjacent cells.
In the embodiment of the present invention, (for example consider some residential quarter, adjacent cell or non-adjacent cell) can produce uplink interference to Serving cell, if but these residential quarters are not the adjacent cells of the Serving cell that sets in advance in BA table, the MS in Serving cell can not measure the level information value of these residential quarters.Thereby, for the accuracy of the uplink interference matrix that improves structure, can edit the BA table, to increase, Serving cell is produced the BCCH frequency point information that the residential quarter of uplink interference comprises.
The BA table that the editor residential quarter sets in advance comprises:
Inquire about the BA table that this residential quarter sets in advance, if having the room in the BA table, in the BA table that sets in advance, the BCCH frequency that is not comprised by adjacent cell that arranges is added in room in the BA table; If do not have the room in the BA table, do not deal with.The BCCH frequency that is not comprised by adjacent cell that arranges can or be simulated according to the data of surveying and be obtained, and specifically can referring to the correlation technique document, not repeat them here.Certainly, in practical application, can also carry out respective extension to the existing BA table that sets in advance, in order to comprise the BCCH frequency point information that the adjacent cells that need to measure comprise more.
Like this, add in room in BA table by the BCCH frequency that will not comprised by adjacent cell and carry out the BA scheduling, can increase as far as possible Serving cell is produced the BCCH frequency that the adjacent cell of uplink interference comprises, in order to measure.For example, if inquiring the BA table maximum length that sets in advance is 32, wherein only comprise 28 frequencies, can determine that also there are 4 rooms in this BA table, 4 BCCH frequency point information that do not comprised by adjacent cell can be added to respectively in 4 rooms of this BA table, make MS receive the BA table, just can further measure according to the BA table level information of the residential quarter that 4 new interpolation frequencies identify.In practical application, if need the BCCH frequency of setting more, also can repeatedly dispatch, and suitable Measuring Time value is set to guarantee that MS when measuring, can measure all BCCH frequency level informations of setting in the BA table at every turn.
The MR data collection module is used for obtaining the MR data that the editor's that MS in each Serving cell issues according to the BA scheduler module BA table measures;
In the embodiment of the present invention, the MR data collection module can be collected the MR data from the ABIS interface between BTS and base station controller (BSC, Base Station Controller) by monitoring signaling.The MR data are take Serving cell as sign, comprise the measurement data that BA table that corresponding MS in each Serving cell issues according to the BTS of this Serving cell is measured and reported.
Existing complete MR data comprise the downlink information of MS measurement and the uplink information that BTS collects.Shown in particular content table 1.
Table 1
in the embodiment of the present invention, if newly added the BCCH frequency point information in the BA that MS receives table, what the MR data that report and existing MR data were slightly different is, the measurement level information that has also comprised the BCCH frequency of new interpolation, with the existing descending level of Serving cell (DL_LEV) that utilizes in the MR data, what the descending interference matrix of BTS transmitting power (BTS_POW) structure was different is, in the embodiment of the present invention, utilize the upper line level (UL_LEV) of MS in the MR data, BTS transmitting power (BTS_POW), MS transmitting power (MS_POW), the measurement level information of the measurement level of 6 adjacent cells (NB1TO NB6) and the new BCCH frequency that adds etc. builds network uplink interference matrix.
The Serving cell level distribution builds module, is used for according to the measuring period that sets in advance, and the upper line level of each MS that in the MR data that report according to MS in Serving cell, BTS measures carries out the segmentation statistics, builds the up level information normal distyribution function of Serving cell;
In the present embodiment, it is to carry out segmentation by the UL_LEV to all MR data in (for example, busy time cycle) Serving cell in measuring period to add up to realize that the Serving cell level distribution builds.The abscissa of segmentation statistics is the value of UL_LEV, between being distributed in 0 to 63 (corresponding level value for-105 to-47dB), ordinate represents declaration form corresponding to each UL_LEV value (MS) number.
By normal distyribution function match UL_LEV segmentation Distribution Statistics, normal distyribution function is:
P
UL_LEV＝N(Mean
UL_LEV，STD
UL_LEV)
Wherein,
P
UL_LEVUpper line level normal distyribution function for statistics;
Mean
UL_LEVBe the mean value of all UL_LEV,
UL_LEV
iBe the upper line level of i MS, n
iFor reporting the number of MR in Serving cell;
STD
UL_LEVStandard variance for UL_LEV.
Up path loss compensating module is used for according to the downlink frequency dot information of network service district and the up frequency point information of adjacent cell, obtains up-downgoing path loss correction value;
In the embodiment of the present invention, for the GSM network, the up-downgoing frequency is in respectively different frequency ranges.For example, the up-downgoing frequency range of China Mobile GSM 900 is respectively 890-909MHZ and 935-954MHZ, and because the radio characteristics of different frequency range is different, it is also different making GSM up-downgoing path loss.That is to say, the descending path loss from BTS to MS is variant with the up path loss from MS to BTS, need to carry out the compensation of up-downgoing path loss correction value.
The path loss correction value is calculated the processing of path loss under different frequency with reference to macrocellular Okumura-Hata model.
In the Okumura-Hata model, the basic transmission loss in urban district (path loss correction value) computing formula is:
L
b＝69.55+26.16lgf-13.82logh
b-αh
m+(44.9-6.55lgh
b)lgd
In formula,
L
bBe the accurate level and smooth landform radio wave propagation loss intermediate value in urban district, unit is decibel (dB);
F is working frequency points, and unit is MHz;
h
bBe the BTS antenna effective height, unit is rice (m);
h
mBe the MS antenna effective height, unit is rice (m);
D is the distance between MS and BTS, and unit is km (km);
α is the MS antenna height factor.
Due in the downlink path from BTS to MS and up path from MS to BTS, BTS antenna effective height, MS antenna effective height, MS are all identical with distance and the MS antenna height factor between BTS, and like this, the formula that calculates up-downgoing path loss correction value is:
DeltaPL＝l
bDL-l
bUL＝26.16lgf
DL-26.16lgf
UL
In formula,
DeltaPL is up-downgoing path loss correction value;
l
bDLBe urban district accurate level and smooth landform downlink electrical ripple median propagation loss, i.e. descending path loss correction value;
l
bULBe the urban district accurate level and smooth up radio wave propagation loss intermediate value of landform, i.e. up path loss correction value;
f
DLBe the descending frequency of Serving cell;
f
ULBe the up frequency of adjacent cell.
After calculating up-downgoing path loss correction value, can form look-up table, i.e. different up-downgoing path loss correction value corresponding to up-downgoing frequency difference.Like this, by the descending frequency in look-up table and up frequency, can find corresponding up-downgoing path loss correction value.
The adjacent cell interference profile builds module, is used for according to the transmitting power of the MR data acquisition adjacent cell MS upper line level in Serving cell BTS place reception;
In the embodiment of the present invention, adjacent cell MS concerning Serving cell MS, as long as utilize identical or adjacent frequency, is to exist to disturb to the up of Serving cell MS.
The adjacent cell interference profile builds module and is used for building the transmitting power of adjacent cell MS in the level at Serving cell up (antenna reception place), the i.e. up level distribution of adjacent cell MS.
Fig. 3 is embodiment of the present invention adjacent area interference profile schematic diagram.Referring to Fig. 3, suppose MS
CTo be in the MS of call state, MS in the B of residential quarter
CUp existence is disturbed to the MS in the A of residential quarter, namely needs to obtain MS
CTransmitting power BTS (BTS in the A of residential quarter
A) level value located.
At first, calculate BTS
ATo MS
CThe path loss at place;
PL
AC＝BTS_POW
A+Antenna_Gain
A-NB
CA
Wherein,
PL
ACBe BTS
ATo MS
CThe path loss at place;
BTS_POW
ABe BTS
ATransmitting power, the transmitting power of each BTS can be known in advance;
Antenna_Gain
ABe BTS
AAntenna gain, the antenna gain of each BTS also can be known in advance;
NB
CABe MS
CThe BTS that test is arrived
ALevel, i.e. the measurement level of adjacent cell, namely MS
CThe adjacent cell BTS that comprises in the MR data that report
AThe measurement level.
Then, according to the BTS that calculates
ATo MS
CThe path loss at place and the output of up path loss compensating module can obtain MS
CBe transmitted into BTS
AThe path loss at place is:
PL
CA＝PL
AC-deltaPL
AC
Wherein,
PL
CABe MS
CBe transmitted into BTS
AThe path loss at place;
DeltaPL
ACBe BTS
ATo MS
CUp-downgoing path loss correction value.
deltaPL
AC＝26.16(lg f
DLA-lg f
ULC)
In formula,
f
DLABe BTS
ADescending frequency;
f
ULCBe MS
CPlace cell uplink frequency;
According to BTS
ADescending frequency and MS
CUp frequency by the look-up table of up path loss compensating module, can obtain deltaPL
ACValue.
And then, based on MS
CBe transmitted into BTS
APath loss, the BTS at place
AAntenna gain and MS
CMS transmitting power in the MR data that report calculates MS
CAt BTS
AThe level at place is:
UL_LEV
CA=MS_POW
C-PL
CA+ Antenna_Gain
A, or
UL_LEV
CA＝MS_POW
C-BTS_POW
A+NB
CA+deltaPL
AC
In formula,
UL_LEV
CABe MS
CAt BTS
AThe level at place;
MS_POW
CBe MS
CTransmitting power is included in MS
CIn the MR data that report;
BTS_POW
ABe BTS
ATransmitting power is included in BTS
AIn the MR data that middle MS reports.
At last, traversal MS
CThe measurement report data of all MS in the B of residential quarter, place is found out all and is comprised residential quarter A (BTS
A) measurement report (the A residential quarter is as the measurement adjacent cell of the B residential quarter) data measured, calculate the UL_LEV that comprises the measurement report that residential quarter A measures
jA, wherein, j comprises the number of the measurement report of adjacent cell A in the B of residential quarter.
To all UL_LEV
jAAdd up, abscissa is UL_LEV
jAValue, between being distributed in 0 to 63 (corresponding level value for-105 to-47dB), ordinate represents each UL_LEV
jAThe declaration form number that value is corresponding.
Use normal distyribution function match UL_LEV
jAThe segmentation Distribution Statistics, normal distyribution function is:
Wherein,
Be all U_LEV
jAMean value;
Wherein,
According to computational methods same as described above, can calculate MS in each adjacent cell respectively at the level at Serving cell place, and according to MS in adjacent cell respectively at the level at Serving cell place, through the segmentation statistics, can obtain this adjacent cell to the interference normal distyribution function of Serving cell.
Preferably, the adjacent cell interference profile builds module and comprises: the first computing unit, the second computing unit and the 3rd computing unit (not shown), wherein,
The first computing unit is used for calculation services residential quarter BTS to the path loss at adjacent cell MS place;
The second computing unit is used for the up-downgoing path loss correction value to the path loss at adjacent cell MS place and Serving cell BTS to adjacent cell MS according to the Serving cell BTS that calculates, and calculating adjacent cell MS is transmitted into the path loss at Serving cell BTS place;
The 3rd computing unit is transmitted into MS transmitting power in the MR data that path loss, Serving cell BTS antenna gain and the adjacent cell MS at Serving cell BTS place report based on adjacent cell MS, calculates adjacent cell MS at the level at Serving cell BTS place.
Interference matrix builds module, is used for building according to the Serving cell level distribution normal distyribution function of module and the output of adjacent cell interference level distribution structure module, the same adjacent telephone traffic of frequently disturbing between calculation plot.
In the embodiment of the present invention, build the normal distyribution function of module and the output of adjacent cell interference level distribution structure module according to the Serving cell level distribution, obtain adjacent cell to the interference effect normal distyribution function of Serving cell, according to adjacent cell, the interference effect normal distyribution function of Serving cell is built adjacent cell to the relational matrix that affects of Serving cell, according to the same adjacent interference frequently that affect between the relational matrix calculation plot.
Interference (the UL_LEV-UL_LEV of residential quarter B (adjacent cell) to residential quarter A (Serving cell)
B) affect normal distyribution function and be:
Affect normal distyribution function according to the rule (interference of residential quarter B on residential quarter A) that affects that is similar between residential quarter A and residential quarter B), all adjacent cells that comprise in the BA table that residential quarter A is received are calculated, and just can obtain the relational matrix that affects as shown in table 2:
Table 2
| Cell_1 | Cell_2 | Cell_3 | …… | Cell_n | |
| Cell_1 | 0 | P 12 | P 13 | …… | P 1n |
| Cell_2 | P 21 | 0 | P 23 | …… | P 2n |
| Cell_3 | P 31 | P 32 | 0 | …… | P 3n |
| …… | …… | …… | …… | …… | …… |
| Cel_m | P m1 | P m2 | P m3 | …… | 0 |
In table 2, Cell_m is Serving cell sign, and Cell_m is the adjacent cell sign, according to the frequency division of the frequency situation between relational matrix and residential quarter of affecting of table 2, same adjacent interference relationships, i.e. interference matrix frequently between calculation plot.
Preferably, interference matrix builds module and comprises: interference effect normal distyribution function construction unit, affect the relational matrix construction unit and with the adjacent telephone traffic calculating unit of frequently disturbing, wherein,
Interference effect normal distyribution function construction unit according to interference normal distyribution function and the Serving cell up level information normal distyribution function of adjacent cell to Serving cell, obtains this adjacent cell to the interference effect normal distyribution function of Serving cell;
Affect the relational matrix construction unit, according to each adjacent cell, the interference effect normal distyribution function of Serving cell is built adjacent cell to the relational matrix that affects of Serving cell;
Frequently disturb telephone traffic to calculate the unit with the neighbour, disturb telephone traffic according to the same adjacent frequency that affects between the relational matrix calculation plot that builds.
Take residential quarter A and residential quarter B as example, same adjacent frequently interference the between them calculated according to following two formula.
The co-channel interference telephone traffic is calculated:
Affect relational matrix P
ABIn distribution function, establish UL_LEV-UL_LEV
BThe traffic ratio of＜Δ UL_LEV is designated as P
Δ AB, wherein, Δ UL_LEV is the co-channel interference thresholding, preferably, Δ UL_LEV is 12dB, i.e. P
Δ AB=P12
ABLike this, residential quarter B to the co-channel interference telephone traffic of residential quarter A is:
Erlan12
AB＝P12
ABxErlan
A
Wherein,
Erlan12
ABThat residential quarter B is to the co-channel interference telephone traffic of residential quarter A;
P12
ABLess than the traffic ratio of co-channel interference thresholding in the interference effect normal distyribution function;
Erlan
AIt is residential quarter A telephone traffic.
The adjacent telephone traffic of frequently disturbing is calculated:
P
ABIn distribution function, establish UL_LEV-UL_LEV
BThe probability of＜Δ ' UL_LEV is designated as P '
Δ AB, wherein, P '
Δ ABAdjacent interference threshold frequently, preferably, P '
Δ ABFor-6dB, i.e. P '
6AB=-6.Like this, residential quarter B frequently disturbs traffic to be to the adjacent of residential quarter A:
Erlan6
AB＝P′
6ABxErlan
A
Wherein,
Erlan6
ABThat residential quarter B is to the adjacent telephone traffic of frequently disturbing of residential quarter A;
Erlan
AIt is residential quarter A telephone traffic.
Preferably, disturb telephone traffic to calculate the unit with adjacent frequency and comprise: co-channel interference telephone traffic computation subunit and neighbour frequently disturb telephone traffic computation subunit (not shown), wherein,
Co-channel interference telephone traffic computation subunit, be used for obtaining the value of interference effect normal distyribution function vertical axis ordinate less than the co-channel interference traffic probability of co-channel interference thresholding, obtain the co-channel interference telephone traffic according to the co-channel interference traffic probability that obtains and pre-stored Serving cell telephone traffic calculating;
The adjacent telephone traffic computation subunit of frequently disturbing, be used for obtaining the value of interference effect normal distyribution function vertical axis ordinate less than the traffic probability of neighbour's frequency interference threshold, disturb traffic probability and pre-stored Serving cell telephone traffic calculating to obtain adjacent frequency according to the adjacent frequency that obtains and disturb telephone traffic.
Fig. 4 is that the embodiment of the present invention builds the method flow schematic diagram of network uplink interference matrix based on measurement report data.Referring to Fig. 4, this flow process comprises:
The BA table that step 401, editor residential quarter set in advance, and export editor's BA table in this residential quarter MS;
In this step, each residential quarter is to there being a BA table that sets in advance.
The BA table that the editor residential quarter sets in advance comprises:
Inquire about the BA table that this residential quarter sets in advance, if having the room in the BA table, in the BA table that sets in advance, with arrange do not shown by BA in the BCCH frequency that comprises of adjacent cell add in room in the BA table; If do not have the room in the BA table, do not deal with.
Step 402 is obtained the MR data that in each Serving cell, MS measures according to the BA table that receives;
In this step, obtain the MR data by monitoring signaling from the ABIS interface between BTS and BSC.
The MR data comprise at least: the upper line level of the measurement level of the descending level of Serving cell, MS transmitting power, adjacent cell, BTS transmitting power and MS etc.
In this step, the segmentation statistics comprises:
Obtain the distributed area of the upper line level of each MS, as the abscissa of trunnion axis;
Add up respectively the MR number corresponding to value of the upper line level of each MS on trunnion axis, as the ordinate of vertical axis.
Building the up level information normal distyribution function of Serving cell comprises:
The mean value of the upper line level of each MS on the statistics trunnion axis is as the desired value of normal distyribution function;
Ordinate corresponding to the up level value of each MS on the mean value of line level upper according to each MS, statistics and vertical axis calculates the upward standard variance of line level of MS, as the standard variance of normal distyribution function.That is:
P
UL_LEV＝N(Mean
UL_LEV，STD
UL_LEV)
Wherein,
P
UL_LEVUpper line level normal distyribution function for statistics;
Mean
UL_LEVBe the mean value of all UL_LEV,
UL_LEV
iBe the upper line level of i MS, n
iFor reporting the MS number of MR data in Serving cell;
STD
UL_LEVStandard variance for UL_LEV.
Step 404 according to the downlink frequency dot information of network service district and the up frequency point information of adjacent cell, is obtained up-downgoing path loss correction value;
This step specifically comprises:
A1, obtain the accurate level and smooth landform downlink electrical ripple median propagation loss l in urban district based on the downlink frequency dot information of Serving cell
bDL
In this step, calculate l
bDLFormula be:
L
bDL＝69.55+26.16lgf
DL-13.82logh
b-αh
m+(44.9-6.55lgh
b)lgd
In formula,
l
bDLUnit is decibel (dB);
f
DLBe the descending frequency of Serving cell, unit is MHz;
h
bBe Serving cell BTS antenna effective height, unit is rice (m);
h
mBe adjacent cell MS antenna effective height, unit is rice (m);
D is the distance between MS and BTS, and unit is km (km);
α is the adjacent cell MS antenna height factor.
In following formula, h
b, h
m, α can obtain in advance, d can calculate by the MR data that MS reports, concrete calculating can referring to the correlation technique document, not repeat them here.
A2, obtain the accurate level and smooth up radio wave propagation loss intermediate value of landform in urban district based on the up frequency point information of adjacent cell;
In this step, computational methods and steps A 1 are similar, and different is, parameter f
DLNeed to replace with the up frequency f of adjacent cell
UL
A3, the accurate level and smooth up radio wave propagation loss intermediate value of landform of level and smooth landform downlink electrical ripple median propagation loss accurate according to the urban district and urban district are obtained up-downgoing path loss correction value.
In this step, the formula that calculates up-downgoing path loss correction value is:
DeltaPL＝l
bDL-l
bUL＝26.16lgf
DL-26.16lgf
UL
In formula,
DeltaPL is up-downgoing path loss correction value.
Certainly, in practical application, also can be according to DeltaPL=l
bDL-l
bUL=26.16lgf
DL-26.16lgf
ULDirectly calculate up-downgoing path loss correction value.
Further, store in the look-up table mode in the up-downgoing path loss correction value that calculates, like this, by the descending frequency in look-up table and up frequency, can find corresponding up-downgoing path loss correction value.
This step specifically comprises:
B1, calculation services residential quarter BTS are to the path loss at adjacent cell MS place;
In this step, Serving cell BTS is designated as BTS
A, adjacent cell MS is designated as MS
CThe path loss computing formula is:
PL
AC＝BTS_POW
A+Antenna_Gain
A-NB
CA
Wherein,
PL
ACBe BTS
ATo MS
CThe path loss at place;
BTS_POW
ABe BTS
ATransmitting power;
Antenna_Gain
ABe BTS
AAntenna gain;
NB
CABe MS
CThe adjacent cell BTS that comprises in the MR data that report
AThe measurement level.
B2, according to the Serving cell BTS that the calculates up-downgoing path loss correction value to the path loss at adjacent cell MS place and Serving cell BTS to adjacent cell MS, calculating adjacent cell MS is transmitted into the path loss at Serving cell BTS place;
In this step, computing formula is:
PL
CA＝PL
AC-deltaPL
AC
Wherein,
PL
CABe MS
CBe transmitted into BTS
AThe path loss at place;
DeltaPL
ACBe BTS
ATo MS
CUp-downgoing path loss correction value.
deltaPL
AC＝26.16(lgf
DLA-lgf
ULC)
In formula,
f
DLABe BTS
ADescending frequency;
f
ULCBe MS
CPlace cell uplink frequency.
B3, be transmitted into MS transmitting power in the MR data that path loss, Serving cell BTS antenna gain and the adjacent cell MS at Serving cell BTS place report based on adjacent cell MS, calculate adjacent cell MS at the level at Serving cell BTS place;
In this step, adjacent cell MS in the level computing formula at Serving cell BTS place is:
UL_LEV
CA=MS_POW
C-PL
CA+ Antenna_Gain
A, or
UL_LEV
CA＝MS_POW
C-BTS_POW
A+NB
CA+deltaPL
AC
In formula,
UL_LEV
CABe MS
CAt BTS
AThe level at place;
MS_POW
CBe MS
CTransmitting power;
BTS_POW
ABe BTS
ATransmitting power.
Each adjacent cell MS that B4, basis calculate builds corresponding adjacent cell to the interference normal distyribution function of Serving cell at the level at Serving cell BTS place.
In this step, calculate respectively each adjacent cell MS at the level at Serving cell BTS place, add up each adjacent cell MS at the mean value of the level at Serving cell BTS place as the desired value of this adjacent cell to the interference normal distyribution function of Serving cell, add up each adjacent cell MS at the standard variance of the level at Serving cell BTS place as the standard variance of this adjacent cell to the interference normal distyribution function of Serving cell.
This step specifically comprises:
C1, according to interference normal distyribution function and the Serving cell up level information normal distyribution function of adjacent cell to Serving cell, obtain this adjacent cell to the interference effect normal distyribution function of Serving cell;
In this step, adjacent cell to the interference effect normal distyribution function of Serving cell is:
C2, according to each adjacent cell, the interference effect normal distyribution function of Serving cell is built adjacent cell to the relational matrix that affects of Serving cell;
C3, according to the same adjacent telephone traffic of frequently disturbing between the relational matrix calculation plot of affecting that builds.
In this step, frequently disturb telephone traffic to comprise with adjacent: adjacent cell is frequently disturbed telephone traffic to co-channel interference telephone traffic and the adjacent cell of Serving cell to the adjacent of Serving cell, wherein,
The co-channel interference telephone traffic is calculated formula:
Erlan12
AB＝P12
ABxErlan
A
Wherein,
Erlan12
ABIt is the co-channel interference telephone traffic;
P12
ABLess than the traffic probability of co-channel interference thresholding in the interference effect normal distyribution function;
Erlan
AIt is the Serving cell telephone traffic.
The adjacent telephone traffic calculating formula that frequently disturbs is:
Erlan6
AB＝P′
6ABxErlan
A
Wherein, Erlan6
ABIt is the adjacent telephone traffic of frequently disturbing;
P′
6ABLess than neighbour's traffic probability of interference threshold frequently in the interference effect normal distyribution function;
Erlan
AIt is the Serving cell telephone traffic.
By as seen above-mentioned, method and the device based on measurement report data structure network uplink interference matrix of the embodiment of the present invention, take the MR data as the basis, statistics, the structure up level information normal distyribution function of Serving cell and each adjacent cell interference normal distyribution function to Serving cell, build all MS of adjacent cell to the uplink interference matrix between all MS of Serving cell according to the difference of two normal distyribution functions, up with the adjacent telephone traffic of frequently disturbing by the uplink interference matrix computations.Like this, by assessing the uplink interference situation between the residential quarter, can weigh the uplink interference between different districts MS in network, according to the uplink interference situation between the residential quarter that calculates and in conjunction with existing descending disturbed condition, realize that new frequency configuration scheme is with total interference of optimized network, can be applied in and in frequency configuration work, a new frequency configuration scheme be improved the uplink interference situation and assess, make the distribution of frequency in the minizone reach optimum.
The above is only preferred embodiment of the present invention, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (22)
1. the method based on measurement report MR data construct network uplink interference matrix, is characterized in that, the method comprises:
The Broadcast Control Channel that sets in advance of editor residential quarter is distributed the BA table, and exports editor's BA table in this residential quarter mobile station MS;
Obtain the MR data that in each Serving cell, MS measures according to the BA table that receives;
According to the measuring period that sets in advance, the upper line level of each MS that in the MR data that report according to MS in Serving cell, base transceiver station BTS measures carries out the segmentation statistics, builds the up level information normal distyribution function of Serving cell;
According to the downlink frequency dot information of network service district and the up frequency point information of adjacent cell, obtain up-downgoing path loss correction value;
Upper line level according to the transmitting power of MR data acquisition adjacent cell MS receives at Serving cell BTS place builds each adjacent cell to the interference normal distyribution function of Serving cell;
According to interference normal distyribution function and the Serving cell up level information normal distyribution function of each adjacent cell to Serving cell, the same adjacent telephone traffic of frequently disturbing between calculation plot.
2. the method for claim 1, is characterized in that, the BA table that described editor residential quarter sets in advance comprises:
Inquire about the BA table that this residential quarter sets in advance, if having the room in the BA table, in the BA table that sets in advance, with arrange do not shown by BA in the BCCH channel of broadcast control frequency that comprises of adjacent cell add in room in the BA table; If do not have the room in the BA table, do not deal with.
3. method as claimed in claim 2, is characterized in that, obtains described MR data by monitoring signaling from the ABIS interface between BTS and base station controller BSC.
4. method as claimed in claim 3, is characterized in that, described MR data comprise: the upper line level of the measurement level of the descending level of Serving cell, MS transmitting power, adjacent cell, BTS transmitting power and MS.
5. method as claimed in claim 4, is characterized in that, described segmentation statistics comprises:
Obtain the distributed area of the upper line level of each MS, as the abscissa of trunnion axis;
Add up respectively the MR number corresponding to value of the upper line level of each MS on trunnion axis, as the ordinate of vertical axis.
6. method as claimed in claim 5, is characterized in that, the up level information normal distyribution function of described structure Serving cell comprises:
The mean value of the upper line level of each MS on the statistics trunnion axis is as the desired value of normal distyribution function;
Ordinate corresponding to the up level value of each MS on the mean value of line level upper according to each MS, statistics and vertical axis calculates the upward standard variance of line level of MS, as the standard variance of normal distyribution function.
7. the method for claim 1, is characterized in that, described up-downgoing path loss correction value computing formula is:
DeltaPL＝26.16(lgf
DL-lgf
UL)
In formula,
DeltaPL is up-downgoing path loss correction value,
f
DLBe the descending frequency of Serving cell,
f
ULUp frequency for adjacent cell.
8. method as claimed in claim 7, is characterized in that, further comprises:
The described up-downgoing path loss correction value that calculates is stored in the look-up table mode.
9. method as claimed in claim 7, is characterized in that, described transmitting power according to MR data acquisition adjacent cell MS comprises at the upper line level of Serving cell BTS place's reception:
Calculation services residential quarter BTS is to the path loss at adjacent cell MS place;
According to the up-downgoing path loss correction value of the Serving cell BTS that calculates to the path loss at adjacent cell MS place and Serving cell BTS to adjacent cell MS, calculating adjacent cell MS is transmitted into the path loss at Serving cell BTS place;
Be transmitted into MS transmitting power in the MR data that path loss, Serving cell BTS antenna gain and the adjacent cell MS at Serving cell BTS place report based on adjacent cell MS, calculate adjacent cell MS at the level at Serving cell BTS place.
10. method as claimed in claim 9, is characterized in that, described calculation services residential quarter BTS to the formula of the path loss at adjacent cell MS place is:
PL
AC＝BTS_POW
A+Antenna_Gain
A-NB
CA
Wherein,
PL
ACBe the path loss of Serving cell BTS to adjacent cell MS place;
BTS_POW
ATransmitting power for Serving cell BTS;
Antenna_Gain
ABe Serving cell BTS antenna gain;
NB
CAThe measurement level of the Serving cell BTS that comprises in the MR data that report for adjacent cell MS.
11. method as claimed in claim 10 is characterized in that, the formula that described calculating adjacent cell MS is transmitted into the path loss at Serving cell BTS place is:
PL
CA＝PL
AC-deltaPL
AC
deltaPL
AC＝26.16(lgf
DL-lgf
UL)
Wherein,
PL
CABe transmitted into the path loss at Serving cell BTS place for adjacent cell MS;
DeltaPL
ACBe the up-downgoing path loss correction value of Serving cell BTS to adjacent cell MS.
12. method as claimed in claim 11 is characterized in that, described adjacent cell MS in the level computing formula at Serving cell BTS place is:
UL_LEV
CA＝MS_POW
C-PL
CA+Antenna_GainAS
A
In formula,
UL_LEV
CABe the level of adjacent cell MS at Serving cell BTS place;
MS_POW
CBe adjacent cell MS transmitting power.
13. method as claimed in claim 9 is characterized in that, each adjacent cell of described structure comprises the interference normal distyribution function of Serving cell:
Calculate respectively each adjacent cell MS at the level at Serving cell BTS place, add up each adjacent cell MS at the mean value of the level at Serving cell BTS place as the desired value of this adjacent cell to the interference normal distyribution function of Serving cell, add up each adjacent cell MS at the standard variance of the level at Serving cell BTS place as the standard variance of this adjacent cell to the interference normal distyribution function of Serving cell.
14. the method for claim 1 is characterized in that, and is described according to interference normal distyribution function and the Serving cell up level information normal distyribution function of each adjacent cell to Serving cell, the same adjacent frequency between calculation plot disturbs telephone traffic to comprise:
According to interference normal distyribution function and the Serving cell up level information normal distyribution function of adjacent cell to Serving cell, obtain this adjacent cell to the interference effect normal distyribution function of Serving cell;
According to each adjacent cell, the interference effect normal distyribution function of Serving cell is built adjacent cell to the relational matrix that affects of Serving cell;
Disturb telephone traffic according to the same adjacent frequency that affects between the relational matrix calculation plot that builds.
15. method as claimed in claim 14 is characterized in that, describedly frequently disturbs telephone traffic to comprise with adjacent: adjacent cell is to the co-channel interference telephone traffic of Serving cell and the adjacent cell adjacent telephone traffic of frequently disturbing to Serving cell.
16. method as claimed in claim 15 is characterized in that, described co-channel interference telephone traffic is calculated formula and is:
Erlan12
AB＝P12
ABxErlan
A
Wherein,
Erlan12
ABIt is the co-channel interference telephone traffic;
P12
ABThat the value of vertical axis ordinate in the interference effect normal distyribution function is less than the traffic probability of co-channel interference thresholding;
Erlan
AIt is the Serving cell telephone traffic.
17. method as claimed in claim 15 is characterized in that, the described adjacent telephone traffic calculating formula that frequently disturbs is:
Erlan6
AB＝P′
6ABxErlan
A
Wherein,
Erlan6
ABIt is the adjacent telephone traffic of frequently disturbing;
P′
6ABThat the value of vertical axis ordinate in the interference effect normal distyribution function is less than the traffic probability of neighbour's frequency interference threshold;
Erlan
AIt is the Serving cell telephone traffic.
18. device based on measurement report MR data construct network uplink interference matrix, it is characterized in that, this device comprises: Broadcast Control Channel (BCCH, Broadcast Control Channel) distribute BA scheduler module, MR data collection module, Serving cell level distribution to build module, up path loss compensating module, adjacent cell interference profile structure module and interference matrix and build module, wherein
The BA scheduler module is used for the BA table that the editor residential quarter sets in advance, and exports editor's BA table in this residential quarter MS, so that the MS this residential quarter in shows to measure according to the BA that receives;
The MR data collection module is used for obtaining the MR data that the editor's that MS in each Serving cell issues according to the BA scheduler module BA table measures;
The Serving cell level distribution builds module, is used for according to the measuring period that sets in advance, and the upper line level of each MS that in the MR data that report according to MS in Serving cell, BTS measures carries out the segmentation statistics, builds the up level information normal distyribution function of Serving cell;
Up path loss compensating module is used for according to the downlink frequency dot information of network service district and the up frequency point information of adjacent cell, obtains up-downgoing path loss correction value;
The adjacent cell interference profile builds module, is used for according to the transmitting power of the MR data acquisition adjacent cell MS upper line level in Serving cell BTS place reception;
Interference matrix builds module, is used for building according to the Serving cell level distribution normal distyribution function of module and the output of adjacent cell interference level distribution structure module, the same adjacent telephone traffic of frequently disturbing between calculation plot.
19. device as claimed in claim 18 is characterized in that, described MR data collection module is collected the MR data by monitoring signaling from the ABIS interface between BTS and base station controller.
20. device as claimed in claim 18 is characterized in that, described adjacent cell interference profile builds module and comprises: the first computing unit, the second computing unit and the 3rd computing unit, wherein,
The first computing unit is used for calculation services residential quarter BTS to the path loss at adjacent cell MS place;
The second computing unit is used for the up-downgoing path loss correction value to the path loss at adjacent cell MS place and Serving cell BTS to adjacent cell MS according to the Serving cell BTS that calculates, and calculating adjacent cell MS is transmitted into the path loss at Serving cell BTS place;
The 3rd computing unit is transmitted into MS transmitting power in the MR data that path loss, Serving cell BTS antenna gain and the adjacent cell MS at Serving cell BTS place report based on adjacent cell MS, calculates adjacent cell MS at the level at Serving cell BTS place.
21. device as claimed in claim 18 is characterized in that, described interference matrix builds module and comprises: interference effect normal distyribution function construction unit, affect the relational matrix construction unit and with the adjacent telephone traffic calculating unit of frequently disturbing, wherein,
Interference effect normal distyribution function construction unit according to interference normal distyribution function and the Serving cell up level information normal distyribution function of adjacent cell to Serving cell, obtains this adjacent cell to the interference effect normal distyribution function of Serving cell;
Affect the relational matrix construction unit, according to each adjacent cell, the interference effect normal distyribution function of Serving cell is built adjacent cell to the relational matrix that affects of Serving cell;
Frequently disturb telephone traffic to calculate the unit with the neighbour, disturb telephone traffic according to the same adjacent frequency that affects between the relational matrix calculation plot that builds.
22. device as claimed in claim 21 is characterized in that, describedly frequently disturbs telephone traffic to calculate the unit to comprise with adjacent: co-channel interference telephone traffic computation subunit and adjacently frequently disturb the telephone traffic computation subunit, wherein,
Co-channel interference telephone traffic computation subunit, be used for obtaining the value of interference effect normal distyribution function vertical axis ordinate less than the co-channel interference traffic probability of co-channel interference thresholding, obtain the co-channel interference telephone traffic according to the co-channel interference traffic probability that obtains and pre-stored Serving cell telephone traffic calculating;
The adjacent telephone traffic computation subunit of frequently disturbing, be used for obtaining the value of interference effect normal distyribution function vertical axis ordinate less than the traffic probability of neighbour's frequency interference threshold, disturb traffic probability and pre-stored Serving cell telephone traffic calculating to obtain adjacent frequency according to the adjacent frequency that obtains and disturb telephone traffic.
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| CN109996239A (en) * | 2017-12-29 | 2019-07-09 | 中国移动通信集团设计院有限公司 | A kind of method and apparatus of LTE network structural optimization analysis |
| CN109996239B (en) * | 2017-12-29 | 2022-06-03 | 中国移动通信集团设计院有限公司 | Method and device for optimizing and analyzing LTE (Long term evolution) network structure |
| CN111130666A (en) * | 2018-10-31 | 2020-05-08 | 中国电信股份有限公司 | Internet of things signal detection method and system |
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