CARD IN RNC 2600(A) RSMU :- (2N) RESOURCE & SWITCH MANAGEMENT UNIT 1) CONTROLS THE SWITCH FABRICS IN RNC 2) ESTABLISH CONNECTION FOR CALL ACCORDING TO REQUEST FROM SIGNALLING 3) HANDLE DSP RESOURCE MANAGEMENT 4) ATM SWITCHING MANAGENENT FUNCTION 5) ESTABLISH OF BOTH INTERNAL & EXTERNAL CONNECTION VIA SFU(B) ICSU :-(N+1) INTERFACE CONTROL & SIGNALLING UNIT 1) SIGNALLING TO OTHER NETWORK ELEMENT & DISTRIBUTED RADIO RESOURCE 2) HANDLES SIGNALLING TRANSACTION & RRM FUNCTION 3) MONITORING & RECOVERY OF SIGNALLING LINK 4) DISTRIBUTED RRM FUNCATIONS(C) DMCU :- (SN+) DATA MICRODIVERCITY COMBINING UNIT 1) GTP TERMINATION (GPRS TUNNILING PROTOCOL) 2) PDCP PROTOCOL PROCESSING( PACKET DATA CONVERENCE PROTOCOL) 2) MAC-C & MAC-D PROTOCOL PROCESSING (D) NPS1 :- (NONE OR 2 N) NETWORK PROCESSOR INTERFACE UNIT STM-1 1) TRANSLATS ATM HEADER 2) PERFORM AAL2 MINIPACKET SWITCHING 3) MAPS ATM CELLS TO/ FROM TRANSMISSION FRAME STRUCTURE OF SDH/SONET(E) NPGE :-(NONE OR 2N) NETWORK PROCESSOR INTERFACE UNIT GIGABIT ETHERNET 1) TRANSLATE IP HEADER 2) MAP IP PACKET TO /FROM TRANSMISSION FRAME STRUCTURE OF ETHERNET 3)PROVIDE ETHERNET INTERFACE & HANDLES MUTIPROTOCOL PACKET PROCESSING AT WIRE SPEED(F) SFU :- (2N) SWITCHINGFABRIC UNIT 1) PROVIDES A PART OF THE CELL SWITCHING FUNCTION 2) CONNECT NETWORK INTERFACE TO MXU (G) MXU :- (2N) MULTIPLEXING UNIT 1) CONNECT NETWORK INTERFACE UNIT,SIGNALLING INTERFACE UNIT TO MAIN FABRIC

(H) A2SU :- (SN+) AALTUPE 2 SWITCHINGUNIT 1) PERFORM MINIPACKET SWITCHING OF AAL2 CPS 2) COLLECT AAL2 LAYER STATICS (I) TBU :- (2) TIMING & BUFFERING UNIT 1) RESPONSIBLE FOR THE NETWORK ELEMENT SYNCHRONIZATION 2) OPERATES IN PLESIOCHRONOUS MODE, IF ALL SYNCHRONISATION ARE LOST (J) NEMU :- NETWOK ELEMENT MANAGEMENT UNIT 1) LOCAL USER INTERFACE 2) PROVIDE INTERFACE TO HIGHER LEVEL CONTROL (K) OMS :- (SN+) OPERATION & MAINTANCE SERVER 1) GRAPHICAL INTERFACE 2) NMS INTERFACE INTERFACE USE IN RNC1) PHYSICAL INTERFACE :- NPS1 OPTICAL INTERFACE & NPGE ETHERNET INTERFACE 2) TIMING& SYNCHRONISATION INTERFACE3)LAN/ ETHERNET INTERFACEUTRAN CORE NETWORK(CN)NODEB+ RNC SGSN+GGSN & MSC/VLR+ GMSC+EIR+HLR/AC INTERFACE BETWEEN SGSN & GGSN------ GnINTERFACE BETWEEN GGSN & PDN-------- GiINTERFACE BETWEEN SGSN & MSC/VLR---- GsINTERFACE BETWEEN SGSN & EIR, HLR, SCP------ GfINTERFACE BETWEEN GGSN & HLR/AC--------INTERFACE BETWEEN MSC & RNC--------- IUCSINTERFACE BETWEEN SGSN & RNC---------- IUPSINTERFACE BETWEEN RNC & CELL OROADCAST CENTRE(CBC)---IU-BCThe RNC2600 can be equipped for three different hardware configuration steps1) RNC2600/1540 (Step 1) :- consists of 1 cabinet with all the sub racks fully equipped

2) RNC2600/2520 (Step 2):-consists of 2 cabinets - cabinet 1 with all sub racks fully equipped and cabinet 2 with the first two sub racks fully equipped

3) RNC2600/3500 (Step 3):-consists of 2 cabinets - cabinet 1 with all sub racks fully equipped and cabinet 2 with all the sub racks fully equipped STEPS STM-1 GE ETHERNET NPS1/P NPGE/P ICSU DMCU MXU1 48 OR 24+24 16 OR 8+8 6 8 14 18 82 80 OR 40+40 24 OR 12+24 10 12 26 28 123 112 OR 56+56 32 OR 16+16 14 16 38 38 16Functional Unit Redundancy PrincipleDMCU SN+ Duplication (2N):- one spare unit designated for one active unitEHU NONEICSU N+1MXU 2NOMS NONE Replacement (N+1) :- one or more units designated to be spare units for a groupOMU 2NRSMU 2NSFU 2N Load sharing (SN+):- no spare units, group acts as a resource poolTBU 2NWDU 2NOMS HDD 2NNPS1 NONE NONE :- No redundancy no special requirements for reliabilityNPGE NONENPS1P 2N (MSP 1+1/APS1+1)NPGEP 2N (MSP 1+1/APS1+1)

Unit typeSFUMXUPlug in Unit typeSF20HMX1G6-A CCP18-A

OMUOMS

MCP18-B ESA24

SWU

ICSURSMUCCP18-C CCP18-C CDSP-DH WDW73

WDW73 NP2GE-B

DMCUWDU (OMU)

HDD (OMS)NPGEP/NPGE 0

NPS1P/NPS1 0 TBU/TBUFNPS1P/NPS1 0

TSS3

SUBRACK PWRPD30

Sheet1Configuration Step12345Number of Subscribers73,000130,000186,000240,000300,000Busy Hour Call Attempts40,50081,500122,000163,000204,000Erlangs1,3002,7004,0005,4006,800Throughput Mbits/sec4885122159196Number of Carriers3845767689601,152Number of BTSes128192256320384