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Mobile Billing
Functions of B&CCS
• Collection of CDRs from all MSCs• Timely and accurately invoicing of call details• Providing different billing cycles for different category
of subscribers with a support of different tariff• Support of charging for various types of existing and
new services• Provisioning of services for mobile subscribers• Customer care for services request and bill inquiry• Number inventory and SIM management system
CCN-Connectivity of customer care to BC
CCN Connectivity
• All customer care nodes connected to B&CCS through LI Router via E1 Link
• Level 1 Routers are connected in Ring network• Each E1 connectivity from CCN is backed up
with ISDN BRI
MSC-Connectivity
• MSC creates the CDR for all local and roaming subscribers• B&CCS collects the CDR from each MSC• Each MSC is connected to B&CCS with E1 and ISDN
backup• E1 link is connected to MSC router and then connected
to X25 Router• All the MSC locations from MSC router connected to
central router at BC• Central Router is connected to Billing Servers where all
CDRs are sent for bill processing
MSC Connectivity
B&CCS to MSC ConnectivityB&CCS to MSC Connectivity
Core SwitchCisco 2924
MSC I
MSC II
MSC III……. Up to 9 Locations MSCs
Central RouterCisco 7206VXR
Decision Support System Optional
Service Provisioning Server
Mediation Sever
Billing Server
MSC RouterCisco 2611
B&CCS Location
B&CCS to CCN ConnectivityB&CCS to CCN Connectivity
Network for customer careterminals in 250 centres
Core SwitchCisco 2924
To 250 E1 Links
Level 1 RoutersCisco 7505
Level 2 RoutersCisco 2611 / Cisco 3662
Dual Links to Switch
Network Management Services
Decision Support System (Optional)
Service Provisioning Server
Mediation Sever
Billing Server
CCN Location1
Cisco 2950-12
Cisco 2620
Cisco 7513
MSC Location 1
Cisco 2621
Catalyst 5505
Cisco 7206VXR
Billing Centre Trichy
2xE
1IS
DN
n x
64
E1 LLIS
DN n x
64
NT1NT1
MSC Location 4CCN Location 61
CCN Location 62- 120
ZONE-2Billing Centre - Trichy
ConvertorG.703-V.35IR 1100
LAN – 2 portsWAN – 68 PortsPRI – 4 ports
LAN – 1 portWAN – 3 PortsBRI – 4 ports
LAN – 2 portWAN – 3 PortsBRI – 4 ports
LAN – 8 portsWAN – 28 PortsPRI – 4 ports
Modem V.35Xstream 1300
LAN Cable
Modem G.703
LAN - 24 ports
BSNL GSM B&CCS Network DiagramBSNL GSM B&CCS Network Diagram
BSNL GSM B&CCS Network Diagram
Karnataka Circle
MSC-1
MSC-2
CCN-1
CCN-2
CCN-56
MSC-1MSC-2 MSC-3
CCN-1 CCN-2
CCN-45
Central Router
AP Circle
Level-1 router
Catalyst 5505
ZONE-1
Level-2 router
MSC router
MSC router
Level-2 router
CCN-46
CCN-74
BSNL GSM B&CCS Network Diagram
B&CCS LAN Setup
9100 N/w Printer
PCNMS Client
NMS serverCisco 5505 switch
4800 4800 4800 280R
280R 280R 280R 280R
Backup 1 Backup 2DevelopmentICA
RemedyOM & CS2 MED2
LAN Connections
Central Router (7206)
BP & CS1 MED1
4800Ethernet port
Ethernet port
LAN Connections
WAP
UMS
IN
CCN Connectivity
Cisco 2600
Cisco 2950-12
10/100
10/100 10/100
v.35 DTE cable
G.703
Xstream V.35 modem
Xstream G.703 modem
Cisco 7513
SiSi
BSNL Backbone
10/100 10/100
Server
POST PAID WORK FLOW
• On receipt of input file from SIM vendor load the input file into the SIM inventory of Billing and customer care system(B&CCS).
• Load MSISDN in MSISDN inventory of B&CCS.
• Load the IMSI & A4KI file in AUC(Authentication center) of NSS.
• Distribute the SIM cards to CSR (customer service representative) locations.
POST PAID WORK FLOW
• CSR1, on receipt of customer’s application will open an account, attach service instance, pair MSISDN of sub. choice with the available SIM.
• Add package, components and save the Order.
• Hand over the SIM card to the customer.
POST PAID WORK FLOW
• The CSR2 opens the Order.
• Confirm the entries with the application.
• Finish the Order.
• There by creating the Customer profile in B&CCS, HLR, VMS etc.
• Now the Post paid SIM with the Customer becomes ACTIVE.
B&CCS
• It is broadly divided into two parts.• 1.The DCN(Data com n/w) part.• 2. The SERVER part.
B&CCS(DCN PART)
• It contains Cisco LAN switch.• Central router for connecting NEs.• Level 1 routers for connecting CSRS.
B&CCS(SERVERS PART)
• MDS(Mediation) servers• BP(Billing payment)&OM(Order management) servers• DEVELOPMENT server• BACKUP servers• TT(Trouble ticket/Remedy) server• ICB(Interconnect bill) server• NMS(n\w management system) server
B&CCS(MDS)
• MDS Servers:(CDR Part)• MDS collects, converts, & dump
the CDR(Call detail record).• MDS converts the BINARY files
from MSC(Mobile switching center) to ASCII and attaches “TYPE ID USAGE”.
• Dumps in three Dumpers viz BP, ICB & PPS_SMS.
• Data collected can be delivered to multiple applications.
• Aggregation, validation, & filtration are done, here.
NE COL CONV DUMP
ICBBP PPS_SMS
MEDIATION SERVER(CDR)
B&CCS(MDS)
• MDS Servers:(SSP Part)• Automate the process of
sub. Provisioning.• Receives SP request in
proprietary format from OM.
• Compose SP request into NE specific commands.
• Based on NE response send back reply to OM.
MEDIATION SERVER(SPP)
request response
task1 task2 task3
Application(OM)
Command
NE
B&CCS(BP&OM)
• Billing servers:• BP(Bill and payment)
&CS1(Customer service) modules constitute one SF4800 server.
• OM(Order management) &CS1(Customer service) modules constitute another SF4800 server.
Billing module
BP
OM CS2
CS1
B&CCS(BP&OM)
• Billing servers:• BP is for rating the CDR.• OM is for service
provisioning.• CS1 & CS2 are to maintain
the Customer profile in the billing system.
Billing module
BP
OM CS2
CS1
B&CCS(CDR RATING FUNCTION)
• “COM”(Communication) process is to move the dir. from MDS to BP.
• Run “MCAP”(Master CDR accumulation process) to guide & separate own & foreign CDR.
• Run “CAP”(CDR accumulation process) where the CDR are actually rated and the call charges are tagged to each CDR.
Billing module
COM
MCAP
CAP
B&CCS(CDR RATING FUNCTION)
• Rating is done by attaching Zone, Component id, Jurisdiction, Rate period by checking the IMSI, Type id usage, Called number, Time/Day stamp.
• Component id is fetched from CMF( customer master table ).• Then it applies the “Unit rate” for the duration of the call.• This “Rating process” is done TWICE A DAY.
B&CCS(Rating example)
• Example of rating configuration in BP:• Zone class for Chennai: 50• Component id for plan 225: 12• Type id usage: 231011 ( Mobile to mobile intra circle)• Jurisdiction: 4001 ( intra circle )• Rate period: P(peak), O(off peak) ,S(Sunday)• Unit rate: 55000
B&CCS(CDR RATING FUNCTION)
• CDR RATING FUNCTION:• After “CAP”, the CDR will be in
tables viz. • CDR_data (Good CDR)• CDR_data_works (Bad CDR)• CDR_out collect (Foreign CDR)• Bad CDR are to be analyzed.• Foreign CDR are meant for
other B&CCS by TAPOUT.• Good CDR are for raising the
Invoice to the Customer
Billing module
COM
MCAP
CAP
CDR_DATA_WORKS CDR_DATA CDR_OUTCOLLECT
MIU
B&CCS(Bill process function)
• Run “BIP”(Bill process) for bill processing function.
• Before “BIP”, check for update of payment towards each account.
• NRC(Non recurring charges) like Deposit, activation, & Registration should be considered.
• RC(Recurring charges) like monthly rent and plan charge, feature charge should be considered.
• USAGE is the Call/SMS charges readily available in CDR_DATA
• Run “BIF”(Bill formatting) for formatting the bill.
Billing module
UsageCDR_DATA
BIP
BIF
B&CCS(Roaming-TAPOUT)
• TAPOUT(Transfer account procedure):Foreign sub. records who used our n/w
• This files will be in tap3 format after “TOP”(TAP output process)
• When TOP is run the CDR from CDR_out collect tables are sorted PLMN wise, converted from ASCII to TAP3.
• CDR in these files contain MOC, MTC & SMS records.
• MOC & SMS records are rated as per agreement whereas MTC is not rated.
• Send TAPOUT to other B&CCS/MACH(Multinational automotive clearing house).
Billing module
COM
MCAP
CAP
CDR_OUTCOLLECT
TOP
TAP3
B&CCS/MACH
B&CCS(Roaming-TAPIN)
• TAPIN(Transfer account procedure): OWN sub records from VPLMN in TAP3 received via MACH/other B&CCS.
• “MRM” is to be run to convert TAP3 to ASCII & attach “Type id usage”.
• These CDR will go into BP along with CDR from MDS.
• CDR in these files will contain MOC, MTC, SMS records.
• MOC&SMS are pre rated in VPLMN whereas MTC is not rated.
• when “CAP” is run MTC will be rated.• Such roaming CDR are posted in the bill
of the sub when “BIP” & “BIF” are run AT THE END OF EVERY MONTH.
Billing module
COM
MCAP
CAP
CDR_OUTCOLLECT
MRM
TAP3
B&CCS/MACH
B&CCS(MISC, SERVERS)
• Development server is for testing new plans, prior to actual implementation.
• Backup servers for taking backup of data from MDS/ BP.
• TT is for complaint management.• ICB is for IUC(Inter connect usage charge)
purpose between different operators.• NMS is for maintaining the Data Communication
n/w.