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DOCPROPERTY "ApprovedBy" \* MERGEFORMAT Yazhong Wei2011-07-29PA1
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Avoiding to uplink interference effecting in GSM network1
IntroduceIn Guangzhou city there are some many serried
architectural complexes, and it is difficult to setup normal
network to cover it. So, they customer who live there setup the RPT
themselves, and our network get more and more uplink interference
from it.These RPT impact the network quality and bring so many drop
calls and insufferable bad qualities to customer who near these
problem regions. Luckily they only affect the GSM900 now. We need
to solve these problems by pressure from customer, and for the
limitation of network investment and frequency, we need to keep
GSM900 base station in site and get enough traffic. Even we need to
keep GSM900 to cover special regions because different path loss
between GSM900 and GSM1800.It is time to change normal way to use
HCS (It is only way to adjust traffic between GSM900 and GSM 1800,
even if it cant adjust by uplink measurement).2 Benefits and
comments
We start this program on Guangzhou first, and call it: avoiding
to uplink interference effecting.
From this method we can improve the KPI special of drop call
rate% and uplink quality in MRR. For mobile user near uplink
interference area, their abnormal disconnection rate% can be
decreased.
Which feature/parameter we need to use for this method is:
HCS
MSRXSUFF
CRO/PT
And this method is designed for algorithm Ericsson1, if you need
to use it in algorithm Ericsson3, it is very difficult to find a
parameter out to map the MSRXSUFF perfect (there are also some
negative effect for others, such as BSTXPWR/OFFSET etc...)3
Introduce to HCS
It is different to Locating algorithm; Locating is based on
signal strength, always you can take the strongest signal strength
(after calculation). For HCS, we can define priority levels to each
cell and each band (up to eight bands and eight Layers); for
example, in a network include GSM900 and GSM1800, we can define
GSM1800 as Band1, and GSM900 as Band2, then for GSM1800 Cells, they
always have high priority than GSM900 Cells, with special parameter
definition, we can effect traffic distribution and hold traffic in
GSM1800 Cells as our design. The same process and same results will
be implemented when you define each Layer to each cell in same
Band.
In HCS algorithm process, the input to the HCS algorithm is a
basic ranking list of neighboring cell candidates from Locating.
The HCS band evaluation rearranges the candidate list in locating
according to the priority rules; and for the lowest priority level
Cells, they HCS setting will not be take into account. If there
only be two Layers in a network, traffic distribution control by
high priority level Cells HCS parameter setting (such as
Layerthr/Layerhyst etc...).In network of CMCC, we normally set
GSM900 Cells as low priority level, then in normally, GSM1800 Cells
HCS parameter setting control the traffic distribution.4 Solution
In CMCC network, we can use 238 GSM1800 frequencies (512~636;
740~852).
So in Guangzhou network, we design solution basing below
situation:
1. Normally signal strength of GSM900 is better than GSM1800s,
but after on site test, for signal quality, GSM1800 is better than
GSM900s in position even if GSM900s signal strength is better more
than 15dB at that time (uplink interference area).2. In uplink
interference area, the lowest access level for GSM900 normally is
-85dBm~-90dBm. But for GSM1800, it is -100dBm~-105dBm.
3. GSM1800 Cells and GSM900 Cells they normally cover the same
place. And it is continuous cover. 4. While GSM900s signal strength
(uplink) is lower than a special level (basing on interference
level), MS will be dropped by bad quality.
5. In uplink interference area, uplink signal strength and
downlink signal strength is approximate (checking by MTR and MRR
result).
6. In some faraway area (logically defined by difference of
GSM900/GSM1800s pass loss), there only has GSM900s signal.
7. Each Cells interference level can be monitor by FASIt is
cover model before (for GSM900/GSM1800 on the same site):
Then we define the target:1. Use GSM1800 instead of GSM900 in
special area (where GSM900s uplink signal strength is lower than
interference level).2. Keep their traffic level, at lease GSM900s
traffic level do not much less than before.3. Improve GSM900s
signal quality and don't impact GSM1800s signal quality too
much.
4. Improve Customers feeling who near uplink interference
area.
And we hope to change the traffic model as below:
KEYPOINT
Use HCS to hold traffic with good quality in GSM900
While GSM900s signal strength is low than LAYERTHR (quality
limitation measured by FAS), to keep quality, connection must be
transfer to GSM1800 from GSM900
To prevent needless HO happening, mapped parameter of IDLE MODE
is necessary
Method:1. Change GSM900 and GSM1800s layer setting, if GSM900s
layer setting is layer2 and GSM1800s layer setting is layer1
before, than GSM900s layer change to layer1 and GSM1800s change to
layer2.2. Use parameter (MSRXSUFF) to transfer traffic from GSM900
to GSM1800 or GSM900 with good quality in special area. a. MSRXSUFF
only be useful in Ericsson1 algorithm (Locating), and will be take
into account after HCS ranking. b. Presume normal network
background interference is -120dBm, and get data from FAS, which
measurement value less than or equal to -110dBm we set their
MSRXSUFF to 20. Others we set the MSRXSUFF to (20-(110-abs
(VALUE))), limitation is zero(step by 2)3. To map locating
parameter and prevent needless HO happening, we need to define IDLE
MODE parameter:
a. we presume all cells parameter(ACCMIN) original setting is
110(this value is not constant, basing the factual network
setting),
b. with the cells MSRXSUFF setting(after step 2):
i. if MSRXSUFF is equal to 20, then PT=0; ii. if MSRXSUFF is not
equal to 20, then PT=31
iii. if MSRXSUFF is equal to 20, then CRO=0
iv. if MSRXSUFF is not equal to 20, then CRO=MSRXSUFF/2
4. Normally in uplink interference area, a GSM connections
uplink and downlink measurement strength is approximate, and for
special cell, you can get the difference value between uplink and
downlink from MRR, and then after calculation we get a logical
value of LAYERTHR/LAYERHYST setting for each cell with uplink
interference:a. From FAS, we get interference value for each cells
each frequencyb. From these value, we get each cells interference
mean value : ai. If CELL** have three frequency, and each
frequencys interference level is ( 20, 21, 22), then cells
interference value is equal to: average(20,21,22)=21c. From MRR, we
get CELL**s uplink and downlink signal strength mean value are:
-85(uplink) and -83(downlink), then the downlink offset value b
is:i. When downlink MRR signal strength is better than uplink MRR
signal strength, b is equal to: downlink MRR signal strength mean
value uplink MRR signal strength mean value = -83-(-85)=2
ii. When downlink MRR signal strength is lower than uplink MRR
signal strength, b is equal to 0(zero)
iii. It is just a empirical value, and the target is prevent
GSM900 Cell getting the traffic of bad quality
d. After we get the value b, we set the cells
LAYERTHR+LAYERHYST=(110-12-(a+b))i. It is just a empirical value,
and the target is prevent GSM900 Cell getting the traffic of bad
quality ii. 12 is a protective margin value basing on C/Iiii. To
prevent needless HO happening and share the traffic between GSM900
and GSM1800, we normally set a highest limitation value to
LAYERTHR+LAYERHYST, in Guangzhou city we set it to 70(68+2), e.
After these setting, we need to monitor the KPI and DT result, and
adjust the parameter setting to a better setting5 Example: Test in
BaiYun area( north to huangshi road)Test area:
Attention: point with color green is test cell
Drop call rate% and HO successful rate% get great improvement.
MRR quality always gets improvement5.1 KPI comparison
Key point:
24 hours Comparison between GSM900 and GSM1800
5.1.1 Traffic changevoice
traffic21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells347389340619368379350447349658352881349307
test cells(GSM900)207730201512207009209893149522204926208987
test
cells(GSM1800)224795217256221756220510165450223479230215
test area include test cells and
neighbors432918423494470915441463439099442839439638
traffic include voice and
data21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells890282886141935449861647850830861567858478
test cells(GSM900)533483527796511236478055348134473904483002
test
cells(GSM1800)565597558333570454591847441189591646605524
test area include test cells and
neighbors1108084110176412050351101893107826710895711088664
Data traffic of GSM1800 increases
Voice traffic modes do not be changed
5.1.2 Traffic congestion
traffic
congestion21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells10.43%9.49%7.89%8.70%7.83%7.52%7.29%
test cells(GSM900)12.73%10.84%8.37%10.27%10.39%7.51%9.68%
test cells(GSM1800)7.35%7.49%6.58%5.47%4.73%4.96%7.32%
test area include test cells and
neighbors10.43%9.55%7.26%7.74%8.29%7.04%6.81%
From data, the difference is very small.5.1.3 Drop call
Drop call rate%
Drop
call%21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells0.73%0.78%0.73%0.56%0.69%0.51%0.51%
test cells(GSM900)1.54%1.60%1.42%1.19%1.09%1.07%1.07%
test cells(GSM1800)0.31%0.33%0.33%0.33%0.31%0.31%0.31%
test area include test cells and
neighbors0.92%0.97%0.94%0.75%0.91%0.67%0.66%
Drop call number:
Drop call
numbers21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells302515310691292042222841207545207758207279
test cells(GSM900)316681317269276205221207150000200781201589
test cells(GSM1800)64258661826685970068512436695268594
test area include test cells and
neighbors382764389942375744299179272634272642271601
It is a great improvement!And the drop call in GSM1800 is
approximate with before. Not too bad.5.1.4 HO
Comparison of Test cells:
daterangeHovercntHoversucHorttochHO success rate%
21-Mar-11test cell131900912668464788496.05%
22-Mar-11test cell134517612824985796695.34%
23-Mar-11test cell119547711655432661397.50%
11-Apr-11test cell8475848321891332498.18%
12-Apr-11test cell113485111141051795998.17%
13-Apr-11test cell124848712271781853598.29%
Comparison of test area includes test cells and
neighbors:daterangeHovercntHoversucHorttochHO success rate%
21-Mar-11test area include test cells and
neighbors169118016215576366695.88%
22-Mar-11172037616393557458895.29%
23-Mar-11152106614796853672297.28%
11-Apr-11112879911071861858898.09%
12-Apr-11145852814299072457798.04%
13-Apr-11158741215581402532598.16%
A good result!5.1.5 ICM
ICM% = (ICM4+ICM5)/(all
ICM)ICM%21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells24.22%24.92%27.12%30.03%29.21%29.41%29.48%
test cells(GSM900)55.05%56.16%56.65%58.51%54.81%55.78%56.25%
test cells(GSM1800)0.33%0.42%0.48%0.46%0.33%0.39%0.39%
test area include test cells and
neighbors23.64%24.32%26.08%28.58%28.53%28.85%28.90%
It is no defference.
5.2 MRR results
5.2.1 Uplink quality%
Uplink quality%= 1-((RXQUALUL6+RXQUALUL7)/ (ALL RXQUALUL))
Total cells special for GSM900 their uplink quality%
increases.
GSM1800 decreases but just a little.5.2.2 Downlink quality%
Downlink quality%= 1-((RXQUALDL6+RXQUALDL7)/ (ALL RXQUALDL))
It is no changed any more than before.
5.3 Summary
After implement the scheme, we get: KPI improved special in drop
call rate Traffic mode changed to beneficial direction
But we see some negative effect:
Number of HO in road has been increased due to more layer change
than before Difficulty of NPI optimization has been improved due to
different parameter setting compared to other cells6 Additional
commentsThis method would improve your networks KPI effectively,
and we also done it in three city (Guangzhou/Fashan/Dongguan). They
all had good result in KPI.But we need to know, it just a logical
method, it can not solve your interference problem in fact, it just
avoids it.
And this method has its limitation:
Because it use Parameter(MSRXSUFF), so it only can be used in
Ericsson1, if your network is using Ericsson3, it is very hard to
find out any other parameters to map it(No one can get the
absolutely same effect) It is only can be used in uplink
interference area, or other area where GSM900s uplink quality is
bad than GSM1800s
It will affect DT effect
Hope it is useful for you!
Chart2
traffic
voice
traffic21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells347389340619368379350447349658352881349307
test cells(GSM900)207730201512207009209893149522204926208987
test
cells(GSM1800)224795217256221756220510165450223479230215
test area include test cells and
neighbors432918423494470915441463439099442839439638
traffic include voice traffic and
data21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells890282886141935449861647850830861567858478
test cells(GSM900)533483527796511236478055348134473904483002
test
cells(GSM1800)565597558333570454591847441189591646605524
test area include test cells and
neighbors1108084110176412050351101893107826710895711088664
congs
traffic
congs21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells10.43%9.49%7.89%8.70%7.83%7.52%7.29%
test cells(GSM900)12.73%10.84%8.37%10.27%10.39%7.51%9.68%
test cells(GSM1800)7.35%7.49%6.58%5.47%4.73%4.96%7.32%
test area include test cells and
neighbors10.43%9.55%7.26%7.74%8.29%7.03%6.81%
drop calls
Drop
call%21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells0.73%0.78%0.73%0.56%0.69%0.51%0.51%
test cells(GSM900)1.54%1.60%1.42%1.19%1.09%1.07%1.07%
test cells(GSM1800)0.31%0.33%0.33%0.33%0.31%0.31%0.31%
test area include test cells and
neighbors0.92%0.97%0.94%0.75%0.91%0.67%0.66%
Drop call
numbers21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test
cells3-Apr-2822-Aug-5031-Jul-9911-Feb-1026-Mar-6825-Oct-684-Jul-67
test
cells(GSM900)15-Jan-6725-Aug-6821-Mar-5622-Aug-057-Sep-1018-Sep-495-Dec-51
test
cells(GSM1800)5-Dec-7512-Mar-8118-Jan-831-Nov-9117-Apr-4021-Apr-8319-Oct-87
test area include test cells and
neighbors20-Dec-4715-Aug-6730-Sep-2814-Feb-1911-Jun-4619-Jun-4613-Aug-43
HO
daterangeHovercntHoversucHorttochHO success rate%
21-Mar-11test cell28-Apr-112-Jul-685-Feb-3196.05%
22-Mar-11test cell18-Dec-8211-May-1113-Sep-5895.34%
23-Mar-11test cell6-Feb-7322-Feb-9110-Nov-7297.50%
11-Apr-11test cell8-Aug-2014-Jun-7823-Jun-3698.18%
12-Apr-11test cell11-Feb-0724-Apr-502-Mar-4998.17%
13-Apr-11test cell28-Mar-1823-Nov-5929-Sep-5098.29%
daterangeHovercntHoversucHorttochHO success rate%
21-Mar-11test area include test cells and
neighbors16-Apr-302-Sep-3922-Apr-7495.88%
22-Mar-1124-Mar-1025-May-8818-Mar-0495.29%
23-Mar-1113-Jul-6428-Mar-5115-Jul-0097.28%
11-Apr-1117-Jul-9015-May-3121-Nov-5098.09%
12-Apr-1123-Apr-9313-Dec-1415-Apr-6798.04%
13-Apr-118-Mar-4614-Jan-662-May-6998.16%
ICM
ICM%21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells24.22%24.92%27.12%30.03%29.21%29.41%29.48%
test cells(GSM900)55.05%56.16%56.65%58.51%54.81%55.78%56.25%
test cells(GSM1800)0.33%0.42%0.48%0.46%0.33%0.39%0.39%
test area include test cells and
neighbors23.64%24.32%26.08%28.58%28.53%28.85%28.90%
Chart3
traffic
voice
traffic21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells347389340619368379350447349658352881349307
test cells(GSM900)207730201512207009209893149522204926208987
test
cells(GSM1800)224795217256221756220510165450223479230215
test area include test cells and
neighbors432918423494470915441463439099442839439638
traffic include voice traffic and
data21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells890282886141935449861647850830861567858478
test cells(GSM900)533483527796511236478055348134473904483002
test
cells(GSM1800)565597558333570454591847441189591646605524
test area include test cells and
neighbors1108084110176412050351101893107826710895711088664
congs
traffic
congs21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells10.43%9.49%7.89%8.70%7.83%7.52%7.29%
test cells(GSM900)12.73%10.84%8.37%10.27%10.39%7.51%9.68%
test cells(GSM1800)7.35%7.49%6.58%5.47%4.73%4.96%7.32%
test area include test cells and
neighbors10.43%9.55%7.26%7.74%8.29%7.03%6.81%
drop calls
Drop
call%21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells0.73%0.78%0.73%0.56%0.69%0.51%0.51%
test cells(GSM900)1.54%1.60%1.42%1.19%1.09%1.07%1.07%
test cells(GSM1800)0.31%0.33%0.33%0.33%0.31%0.31%0.31%
test area include test cells and
neighbors0.92%0.97%0.94%0.75%0.91%0.67%0.66%
Drop call
numbers21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test
cells3-Apr-2822-Aug-5031-Jul-9911-Feb-1026-Mar-6825-Oct-684-Jul-67
test
cells(GSM900)15-Jan-6725-Aug-6821-Mar-5622-Aug-057-Sep-1018-Sep-495-Dec-51
test
cells(GSM1800)5-Dec-7512-Mar-8118-Jan-831-Nov-9117-Apr-4021-Apr-8319-Oct-87
test area include test cells and
neighbors20-Dec-4715-Aug-6730-Sep-2814-Feb-1911-Jun-4619-Jun-4613-Aug-43
HO
daterangeHovercntHoversucHorttochHO success rate%
21-Mar-11test cell28-Apr-112-Jul-685-Feb-3196.05%
22-Mar-11test cell18-Dec-8211-May-1113-Sep-5895.34%
23-Mar-11test cell6-Feb-7322-Feb-9110-Nov-7297.50%
11-Apr-11test cell8-Aug-2014-Jun-7823-Jun-3698.18%
12-Apr-11test cell11-Feb-0724-Apr-502-Mar-4998.17%
13-Apr-11test cell28-Mar-1823-Nov-5929-Sep-5098.29%
daterangeHovercntHoversucHorttochHO success rate%
21-Mar-11test area include test cells and
neighbors16-Apr-302-Sep-3922-Apr-7495.88%
22-Mar-1124-Mar-1025-May-8818-Mar-0495.29%
23-Mar-1113-Jul-6428-Mar-5115-Jul-0097.28%
11-Apr-1117-Jul-9015-May-3121-Nov-5098.09%
12-Apr-1123-Apr-9313-Dec-1415-Apr-6798.04%
13-Apr-118-Mar-4614-Jan-662-May-6998.16%
ICM
ICM%21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells24.22%24.92%27.12%30.03%29.21%29.41%29.48%
test cells(GSM900)55.05%56.16%56.65%58.51%54.81%55.78%56.25%
test cells(GSM1800)0.33%0.42%0.48%0.46%0.33%0.39%0.39%
test area include test cells and
neighbors23.64%24.32%26.08%28.58%28.53%28.85%28.90%
Chart3
traffic
voice
traffic21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11voice
traffic21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells347388.8001957316test area include test cells and
neighbors432917.7241996116
total traffic include data and
voice21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11total
traffic include data and
voice21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells890281.8446251239test area include test cells and
neighbors1108084.1732856072
voice
traffic21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells(GSM900)
voice
traffic21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells(GSM1800)
congs
traffic
congs21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells10.43%9.49%7.89%8.70%7.83%7.52%7.29%
test cells(GSM900)12.73%10.84%8.37%10.27%10.39%7.51%9.68%
test cells(GSM1800)7.35%7.49%6.58%5.47%4.73%4.96%7.32%
test area include test cells and
neighbors10.43%9.55%7.26%7.74%8.29%7.03%6.81%
drop calls
Drop
call%21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells0.73%0.78%0.73%0.56%0.69%0.51%0.51%
test cells(GSM900)1.54%1.60%1.42%1.19%1.09%1.07%1.07%
test cells(GSM1800)0.31%0.33%0.33%0.33%0.31%0.31%0.31%
test area include test cells and
neighbors0.92%0.97%0.94%0.75%0.91%0.67%0.66%
Drop call
numbers21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells302515310691292042222841207545207758207279
test cells(GSM900)316681317269276205221207150000200781201589
test cells(GSM1800)64258661826685970068512436695268594
test area include test cells and
neighbors382764389942375744299179272634272642271601
HO
daterangeHovercntHoversucHorttochHO success rate%
21-Mar-11test cell131900912668464788496.05%
22-Mar-11test cell134517612824985796695.34%
23-Mar-11test cell119547711655432661397.50%
11-Apr-11test cell8475848321891332498.18%
12-Apr-11test cell113485111141051795998.17%
13-Apr-11test cell124848712271781853598.29%
daterangeHovercntHoversucHorttochHO success rate%
21-Mar-11test area include test cells and
neighbors169118016215576366695.88%
22-Mar-11172037616393557458895.29%
23-Mar-11152106614796853672297.28%
11-Apr-11112879911071861858898.09%
12-Apr-11145852814299072457798.04%
13-Apr-11158741215581402532598.16%
ICM
ICM%21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells24.22%24.92%27.12%30.03%29.21%29.41%29.48%
test cells(GSM900)55.05%56.16%56.65%58.51%54.81%55.78%56.25%
test cells(GSM1800)0.33%0.42%0.48%0.46%0.33%0.39%0.39%
test area include test cells and
neighbors23.64%24.32%26.08%28.58%28.53%28.85%28.90%
Chart1
traffic
voice
traffic21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells347389340619368379350447349658352881349307
test cells(GSM900)207730201512207009209893149522204926208987
test
cells(GSM1800)224795217256221756220510165450223479230215
test area include test cells and
neighbors432918423494470915441463439099442839439638
traffic include voice traffic and
data21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells890282886141935449861647850830861567858478
test cells(GSM900)533483527796511236478055348134473904483002
test
cells(GSM1800)565597558333570454591847441189591646605524
test area include test cells and
neighbors1108084110176412050351101893107826710895711088664
congs
traffic
congs21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells10.43%9.49%7.89%8.70%7.83%7.52%7.29%
test cells(GSM900)12.73%10.84%8.37%10.27%10.39%7.51%9.68%
test cells(GSM1800)7.35%7.49%6.58%5.47%4.73%4.96%7.32%
test area include test cells and
neighbors10.43%9.55%7.26%7.74%8.29%7.03%6.81%
drop calls
Drop
call%21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells0.73%0.78%0.73%0.56%0.69%0.51%0.51%
test cells(GSM900)1.54%1.60%1.42%1.19%1.09%1.07%1.07%
test cells(GSM1800)0.31%0.33%0.33%0.33%0.31%0.31%0.31%
test area include test cells and
neighbors0.92%0.97%0.94%0.75%0.91%0.67%0.66%
Drop call
numbers21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test
cells3-Apr-2822-Aug-5031-Jul-9911-Feb-1026-Mar-6825-Oct-684-Jul-67
test
cells(GSM900)15-Jan-6725-Aug-6821-Mar-5622-Aug-057-Sep-1018-Sep-495-Dec-51
test
cells(GSM1800)5-Dec-7512-Mar-8118-Jan-831-Nov-9117-Apr-4021-Apr-8319-Oct-87
test area include test cells and
neighbors20-Dec-4715-Aug-6730-Sep-2814-Feb-1911-Jun-4619-Jun-4613-Aug-43
HO
daterangeHovercntHoversucHorttochHO success rate%
21-Mar-11test cell28-Apr-112-Jul-685-Feb-3196.05%
22-Mar-11test cell18-Dec-8211-May-1113-Sep-5895.34%
23-Mar-11test cell6-Feb-7322-Feb-9110-Nov-7297.50%
11-Apr-11test cell8-Aug-2014-Jun-7823-Jun-3698.18%
12-Apr-11test cell11-Feb-0724-Apr-502-Mar-4998.17%
13-Apr-11test cell28-Mar-1823-Nov-5929-Sep-5098.29%
daterangeHovercntHoversucHorttochHO success rate%
21-Mar-11test area include test cells and
neighbors16-Apr-302-Sep-3922-Apr-7495.88%
22-Mar-1124-Mar-1025-May-8818-Mar-0495.29%
23-Mar-1113-Jul-6428-Mar-5115-Jul-0097.28%
11-Apr-1117-Jul-9015-May-3121-Nov-5098.09%
12-Apr-1123-Apr-9313-Dec-1415-Apr-6798.04%
13-Apr-118-Mar-4614-Jan-662-May-6998.16%
ICM
ICM%21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells24.22%24.92%27.12%30.03%29.21%29.41%29.48%
test cells(GSM900)55.05%56.16%56.65%58.51%54.81%55.78%56.25%
test cells(GSM1800)0.33%0.42%0.48%0.46%0.33%0.39%0.39%
test area include test cells and
neighbors23.64%24.32%26.08%28.58%28.53%28.85%28.90%
Chart1
traffic
voice
traffic21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11voice
traffic21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells347388.8001957316test area include test cells and
neighbors432917.7241996116
total traffic include data and
voice21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11total
traffic include data and
voice21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells890281.8446251239test area include test cells and
neighbors1108084.1732856072
voice
traffic21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells(GSM900)
voice
traffic21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells(GSM1800)
congs
traffic
congs21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells10.43%9.49%7.89%8.70%7.83%7.52%7.29%
test cells(GSM900)12.73%10.84%8.37%10.27%10.39%7.51%9.68%
test cells(GSM1800)7.35%7.49%6.58%5.47%4.73%4.96%7.32%
test area include test cells and
neighbors10.43%9.55%7.26%7.74%8.29%7.03%6.81%
drop calls
Drop
call%21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells0.73%0.78%0.73%0.56%0.69%0.51%0.51%
test cells(GSM900)1.54%1.60%1.42%1.19%1.09%1.07%1.07%
test cells(GSM1800)0.31%0.33%0.33%0.33%0.31%0.31%0.31%
test area include test cells and
neighbors0.92%0.97%0.94%0.75%0.91%0.67%0.66%
Drop call
numbers21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells302515310691292042222841207545207758207279
test cells(GSM900)316681317269276205221207150000200781201589
test cells(GSM1800)64258661826685970068512436695268594
test area include test cells and
neighbors382764389942375744299179272634272642271601
HO
daterangeHovercntHoversucHorttochHO success rate%
21-Mar-11test cell131900912668464788496.05%
22-Mar-11test cell134517612824985796695.34%
23-Mar-11test cell119547711655432661397.50%
11-Apr-11test cell8475848321891332498.18%
12-Apr-11test cell113485111141051795998.17%
13-Apr-11test cell124848712271781853598.29%
daterangeHovercntHoversucHorttochHO success rate%
21-Mar-11test area include test cells and
neighbors169118016215576366695.88%
22-Mar-11172037616393557458895.29%
23-Mar-11152106614796853672297.28%
11-Apr-11112879911071861858898.09%
12-Apr-11145852814299072457798.04%
13-Apr-11158741215581402532598.16%
ICM
ICM%21-Mar-1122-Mar-1123-Mar-1124-Mar-1111-Apr-1112-Apr-1113-Apr-11
test cells24.22%24.92%27.12%30.03%29.21%29.41%29.48%
test cells(GSM900)55.05%56.16%56.65%58.51%54.81%55.78%56.25%
test cells(GSM1800)0.33%0.42%0.48%0.46%0.33%0.39%0.39%
test area include test cells and
neighbors23.64%24.32%26.08%28.58%28.53%28.85%28.90%