WCDMA RAN workshop

Open
16
2009/2/2
Hardware Overview, SPB
The SPB
•For application specific purposes •Hardware includes PowerPC, memory, and ATM/AAL termination •Each SPB contains several Special purpose Processor Module (SPMs) •Different applications may run on different SPMs.
Open
8
2009/2/2
Common platform - Connectivity Packet Platform (CPP)
Core Network
MGW CPP RNC CPP RXI CPP RBS CPP RBS RBS CPP RBS CPP CPP RBS CPP
RBS CPP
Open
19" subrack Fan cooled – Air inlets on front bottom – Outlet on top back Up to 28 boards per subrack – Two Switch Core Boards (SCBs) – 26 general device boards – 15 mm board spacing – PBA size 225 × 265 mm Hot insertion of boards All connectors on board front EMC-shielded subracks Power: Redundant -48V
2009/2/2
Hardware Overview, GPB53
The GPB operates as a Main Processor (MP). It contains and executes the main part of the RNC software. In MS four GPB pairs are duplicated to provide redundancy. In case of failure in the active board, the standby GPB takes over the role as active. The remaining GPBs are Pooled Module MPs.
Power
Ethernet Serial RS232
Connectors
ATM, clocks and test
2009/2/2
Open
15
Hardware Overview, TUB
The Timing Unit Board
•To regenerate a low-noise and stable reference clock signal, and to provide a number of lownoise output reference clock signals. •Always located in the hub subrack •The system clock is distributed from the TU to all devices in the node, needing the clock. •Synchronization input, e.g., for GPS connections
– –
– – – – – –
Small footprint of RNC 3810, easy to find a place where RNC 3810 can be installed; Pre-tested and pre-loaded with current software (SW) before dilivered from factory.
Open
17
2009/2/2
Hardware Overview, SCB
Power, in/out -48V in Fan Power External Alarm LEDs for ISL
Switch core connectors (ASCI) ATM, clocks and test
ISL connectors
Efficiency

High reliability and availability

Flexibility
–
– – – – –
Modular product configurations: the RNC 3810 provides a modular hardware architecture, Expandability: all expansions up to the maximum RNC 3810 configuration are handled without disturbing on-going traffic; Evolution: the RNC 3810 is designed for easy introduction of new technologies; Service convenience: the same RNC 3810 HW configuration handles any service mix, SW-centric solution: new services such as HSDPA and Enhanced Uplink can be introduced without addition of new HW; Pooling: processing resources are pooled for efficient resource sharing and redundancy.
Compact, with high capacity; Transmission: several ATM and IP interface types are supported; Radio resource management: using power, admission, congestion, guaranteeing optimal usage of the available radio spectrum. Redundancy: the RNC 3810 is designed with redundancy for all hardware (HW), Hot-repair: hardware boards can be replaced and/or added while the RNC 3810 is in operation; Soft software upgrade: corrections and upgrades can be made while in operation;
Fan

400

Cable shelf
450cm
250
Open
11
2009/2/2
RNCWDR2000板卡列表
Open
12
2009/2/2
RNC Configuration – Main Subrack
Open
13
2009/2/2
RNC extension subrack
Open
14
ISL – Inter Subrack Link
Open
18
2009/2/2
Hardware Overview, SXB
The SXB
•Four Inter Subrack Links (ISL) for interconnection between subracks •Has circuits for distribution of System Clock
GPB, SPB, SCB, ETB
Main Subrack ICF
Open 6
GPB, SPB, TUB, (SXB), SCB, ETB
2009/2/2
RNC Function List





Manage and secure an optimal usage of the radio resources of the radio access network Control the mobility and handover within the radio access network Support Inter Radio Access Technology interworking towards other radio access systems. The RNC provides Handover functions between WCDMA RAN and GSM, and Cell Change between WCDMA RAN and GSM/GPRS Support Radio Access Bearer (RAB) services with: Circuit Switched and Packet Switched data Provide a transparent bearer service for control messages between the Core Network and the User Equipment (UE) (direct transfer) Support control functions for paging of UEs, Signalling Connection handling, RAB service handling, and complementary services such as UE positioning functions Provide element management functions Provide transport network functions