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8/10/2019 How to Get Exact BCCH and BSIC From MR
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ow to read BCC and BSIC in MR
【Phenomena Description】
When we read the MR from drive test log and MC signal trace! we cannot get
the e"act BCCH and BSIC directl#$ %he following anal#sis will give #o& the
tr&th$
【Reason 'nal#sis】
Here is a MR from operator M! there is a total of () fre*&enc# points in +SM,--
and .) fre*&enc# points in DCS/0--$
+SM,--1 .)2,,
DCS/0--1 33/2.4)
【Processing】
%he following te"t in red is the e"planations from protocol$
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8/10/2019 How to Get Exact BCCH and BSIC From MR
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&CCH-'(E)-*CELL i% &CCH c"rrier o t+e i,t+ nei$+ourin$ cell .octet 6% /%10% 12% 14% 1% 16 "n! 1
T+e &CCH-'(E)-*CELL i iel! i3 co!e! "3 t+e in"ry rere3ent"tion o t+e o3ition% 3t"rtin$ 5it+ 0% o t+e i,t+ nei$+ourin$
cell3 &CCH c"rrier in t+e &CCH c+"nnel li3t T+e &CCH c+"nnel li3t i3 como3e! o one or t5o &CCH c+"nnel 3u li3t3%
e"c+ 3u li3t i3 !erive! rom t+e 3et o re7uencie3 !eine! y reerence nei$+our cell3 !e3crition inorm"tion element or
element3 In t+e l"tter c"3e t+e 3et i3 t+e union o t+e t5o 3et3 !eine! y t+e t5o nei$+our cell3 !e3crition inorm"tion
element3
In e"c+ &CCH c+"nnel 3u li3t t+e "3olute (' c+"nnel numer3 "re l"ce! in incre"3in$ or!er o A('C*% e8cet t+"t
A('C* 0% i inclu!e! in t+e 3et% i3 ut in t+e l"3t o3ition in t+e 3u li3t T+e &CCH c+"nnel li3t con3i3t3 eit+er o only t+e 3u
li3t !erive! rom t+e nei$+our cell3 !e3crition inorm"tion element.3 in Sy3tem Inorm"tion 29 ."n! o33ile 2i39i3 or
o t+"t 3u li3t imme!i"tely ollo5e! y t+e 3u li3t !erive! rom t+e nei$+our cell3 !e3crition inorm"tion element in
Sy3tem Inorm"tion 2ter9ter or t+e c"3e Sy3tem Inorm"tion 2ter9ter i3 "l3o receive! I t+e 3et o A('C*3 !eine! y t+e
reerence nei$+our cell3 !e3crition inorm"tion element or element3 inclu!e3 re7uencie3 t+"t t+e moile 3t"tion !oe3 not
3uort t+en t+e3e A('C*3 3+"ll e inclu!e! in t+e li3t
T+e not"tion 29 etc me"n3 t+"t t+e rule3 "ove "ly to t+e nei$+our cell3 !e3crition inorm"tion element3 receive! in
Sy3tem Inorm"tion 2% 2i3 "n! 2ter "n! to t+o3e receive! in Sy3tem Inorm"tion % i3 "n! ter 3e"r"tely
See note 1 2
("n$e: 0 to ;1
&SIC-*CELL i% &"3e 3t"tion i!entity co!e o t+e i,t+ nei$+ourin$ cell .octet 6% % /% <% 10% 11% 1;% 1 "n! 1
T+e &SIC-*CELL i iel! i3 co!e! "3 t+e in"ry rere3ent"tion o t+e "3e 3t"tion i!entity co!e o t+e i,t+ nei$+ourin$ cell
See note 1 2
("n$e: 0 to 6;
NOTE 1: I t+e iel! e8ten!3 over t5o octet3 t+e +i$+e3t numere! it o t+e lo5e3t numere! octet i3 t+e mo3t 3i$niic"nt
"n! t+e lo5e3t numere! it o t+e +i$+e3t numere! octet i3 t+e le"3t 3i$niic"nt
NOTE 2: I *=-*CELL-> ? 6 t+e rem"inin$ (@LE-*CELL i% &S-'(E)-*CELL i "n! &SIC-*CELL i iel!3 .*=-*CELL-> ?
i ?B 6 3+"ll e co!e! 5it+ " 0 in e"c+ it
%he following MR is one of the MRs from %5MS log$
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And the MR below is the corresponding MR from OMC.
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After comparing the two snaps, we can make a conclusion; BIC is octal in
!"M when it is decimal in OMC signal trace.
#rom the MR we got in OMC trace, we can know the !R$ I%, and we can know
the ser&ing cell is ''(%A.
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)e e*port the BA+ table and neighbor cells of ''(%A.
BA+list of ''(%A -; /00; --; /-'; /01; /0-; /0/; /02; /0+; //1; //0; ///;
//; //3; 0/; -2; /0; -(; //-; /0'; //+; 01; -/; /-(; /0(; -1; -'; -0; //2;
-2; !he following snapping is the neighbor information
)e list the neighbor as table below.
67 BCCH BSIC8D5C9
BSIC8C%9
67:/ (3 (; 4-67:( (0 4, ;.67:4 (( 4( ;-
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67:; /. 44 ;/67:) 0 40 ;367:3 ( ;- )-
)e ranked the BA+ table in two di4erent wa5s as below, one is ranked b5
absolute &alue; !he fre6uenc5 which is the same band as ser&ing cell has the
higher priorit5 in another ranking method.
According to the fre6uenc5, we list the detailed cell name and bsic information
as the table below.
#rom the comparing result, we can make as conclusion as following.
#re6uenc5 information in MR is the BA se6uence ranking b5 method + 7C
Band has high priorit58;
BIC is octal in !"M log when it is decimal in OMC signal trace.
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