SMSC Main unit Main unit including cabinet, management unit, software, interface units, power supply Direct Extension unit: BH MMS Main unit capacity extension per BH MMS Direct IN Main unit Main unit including cabinet, management unit, software, interface units, power supply Direct Extension unit: subscribers Main unit capacity extension per subscriber Direct Extension unit: BH transactions Main unit capacity extension per BH transaction Direct PCU Main unit Main unit including cabinet, management unit, software, interface units, power supply Direct Extension unit: Gb link throughput Main unit capacity extension per subscriber Direct SGSN Main unit Main unit including cabinet, management unit, software, interface units, power supply Direct Extension unit: Gb link throughput Main unit capacity extension per subscriber Direct GGSN Main unit Main unit including cabinet, management unit, software, interface units, power supply Direct IMS Main unit Main unit including frame, management unit, software, interface units, power supply Direct Service card MRCF/CCTF Shelf to include the service cards Direct Service card - A-SBG Service providing A-SBG functionality Direct Service card - VoIP AS Service cards providing VoIP Application Server Direct Service card - BGCF Service providing BGCF functionality Direct Service card - DNS server Service cards providing DNS functionality Direct Service card - Service delivery AS Service cards providing Service delivery application server Direct Service card - HSS - Control card Service cards providing HSS - Control card Direct Service card - HSS – database Service cards providing HSS - database Direct IMS - Licenses IMS licences per subscriber Direct IMS - Licenses - traffic IMS licences per traffic (BHCA, BHE) Direct HSS – Licenses HSS licences per subscriber Direct
Billing system Main unit Main unit including cabinet, management unit, software, interface units, power supply Direct Extension unit: BHCA Main unit capacity extension per BHCA Direct Number portability Main unit Main unit including cabinet, management unit, software, interface units, power supply Direct Extension unit: BHCA Main unit capacity extension per BHCA Direct NMS N/A N/A Mark-up Transmission backhaul Radioline 1O Mbit/s The complete radioline including IDU, ODU, antenna system, software and licences, interface unit and supply Direct Radioline 20 Mbit/s The complete radioline including IDU, ODU, antenna system, software and licences, interface unit and power supply Direct Radioline 50 Mbit/s The complete radioline including IDU, ODU, antenna system, software and licences, interface unit and power supply Direct Radioline 100 Mbit/s The complete radioline including IDU, ODU, antenna system, software and licences, interface unit and power supply Direct Radioline 150 Mbit/s The complete radioline including IDU, ODU, antenna system, software and licences, interface unit and supply Direct Radioline 200 Mbit/s The complete radioline including IDU, ODU, antenna system, software and licences, interface unit and power supply Direct Core transmission Data transmission service 1Gbit/s The rental fee of data transmission service Direct Data transmission service 10Gbit/s The rental fee of data transmission service Direct
– Interconnect traffic in MGW, BHE. Division by 0.7 is BHE conversion to channels number and division by 31 is channels conversion to 2 Mbit ports number. Interconnect traffic (, BHE) in MGW is calculated according to the following formula: Where: MTotal – Total call minutes between MGW and point of interconnection, BHE. VMTotal - Total video call minutes between MGW and point of interconnection, BHE. SMSTotal – SMS messages between MGW and point of interconnection, BHE. MMSTotal – MMS messages between MGW and point of interconnection, BHE; Number of 2 Mbit/s ports (, units) in MGW is calculated according to the following formula: Where: – Inter-switch traffic in MGW, BHE. Division by 0.7 is BHE conversion to channels number and division by 31 is channels conversion to 2 Mbit ports number. Inter-switch traffic (, BHE) in MGW is calculated according to the following formula: Where: MON – Total on-net voice minutes traffic in MGW, BHE; SMSON – Total on-net SMS messages traffic in MGW, BHE; VMON – Total on-net video minutes traffic in MGW, BHE; MMSON – Total on-net MMS messages traffic in MGW, BHE; So, total amount of MGW base units (BUMGW, units) is calculated according to the following formula: Where: – Number of MGW base units to meet minimal network requirements, units. – Number of MGW base units to meet switching capacity requirements; – Number of MGW base units to meet port number requirements, units. The amount of MGW extension units for both processor and ports part is calculated according to the algorithm provided in section 7.3.1 Base and extension units concept with the number of BHCA and the total number of
ports required in MGW as dividend variables respectively. Voice Mail Service and Home Location Register Each Voice mail service (VMS) and Home location register (HLR) comprises two parts: Base unit; Extension units. The outcome of the algorithm presented in this section is the number of base and extension units for VMS and HLR. The dividend variable for VMS is measured by mailboxes and HLR by the number of subscribers’. The amount of VMS and HLR base units and extension units is calculated according to the algorithm provided in section 7.3.1 Base and extension units concept with mailboxes and the number of subscribers as dividend variables. Service Control (Intelligent Network) Service Control Point (SCP) is the network element, which services pre-paid subscribers. SCP comprises two parts: Base unit (pre - paid related); Extension: Subscribers part; Transactions part. Estimation of the minimum number of SCP base required is a function of requirements to meet the subscribers and traffic demand. In each component’s case calculation algorithms are described below. The amount of SCP base units (BUSCP, units) is calculated according to the following formulas: Where: Npre – Pre-paid subscribers, units; NTr/s – Busy hour transactions per second, units; – Maximal operational capacity to satisfy number of subscribers; – Maximal operational capacity to satisfy number of transactions, BH transactions/s; NTSub – GSM, UMTS and LTE subscribers, units; NBHCA – Call attempts in BHT, BHCA; αt/c- Average number of IN transactions per one pre-paid subscriber call (on-net and off-net) The amount of SCP extension units for subscribers and transactions part is calculated according to the algorithm provided in section 7.3.1 Base and extension units concept with the number of subscribers and BH transactions per second dividend variables.
Network valuation Cost annualization All fixed line network elements identified during network dimensioning are revalued at Gross Replacement Cost (GRC). On the basis of GRC value, its annual CAPEX cost is being further calculated. In BU-LRIC model there are four alternative methods that are used to calculate annual CAPEX costs: Straight-line method; Annuity method; Tilted Annuity method; Economic depreciation method. Algorithms to calculate annual CAPEX cost (depreciation and ROI) using straight-line, annuity, tilted annuity and economic depreciation methods are described in the following sections. Straight-line method The annual CAPEX costs under the straight-line method are calculated according to the following formula: Where: - current depreciation (l – useful life of an asset (data will be gathered from Operators); GRC –gross replacement cost of an asset); , holding gain (loss); - cost of capital; Index - price index change (data will be gathered from Operators); NBV – net book GBV – gross book value; WACC - weighted average cost of capital. Annuity method The annual costs under the annuity method are calculated according to the following formula: Tilted annuity method The annual CAPEX costs under tilted annuity method are calculated according to the following formula: Economic depreciation method The economic depreciation algorithm involves a cash-flow analysis to answer the question: what time-series of