ZTE RNC Product Overview-201104
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Transcript of ZTE RNC Product Overview-201104
ZTE RNC Product Introduction
Internal Only▲
User Equipment
Radio Network System
Core Network
UMTS Network Architecture
UMTS System is consisting of Core Network (CN), UMTS Terrestrial Radio Access Network (UTRAN) and User Equipment (UE)
2
一级目录标题楷体 GB2312(加粗 )Arial(加粗 )白色24 ~ 28号
ZXWR RNC Introduction
RNC Dimensioning
Summary
Internal Only▲
4
RNC System Structure
Composed by RAU, RSU, RPU, ROMU, and RPMU
Power、
Process Unit RPU
O&M UnitROMU
Peripheral Monitor UnitRPMU
RA
UA
ccess Unit
RS
US
witch U
nit
RNC
Node B
RNC
CN
STM -1E1
FE/ GE485
GPS
Iub
Iur
Iu
Fan
Internal Only▲
5
RNC Shelf Structure
Control shelf
Resource shelf
Switch shelf
Uses BCTC as Backboard, takes charge of processing RNC control plane (RCB), and also includes ROMB, CLKG,THUB, SBCX.
Uses BGSN as Backboard, takes charge of processing RNC user plane (RUB) , and supplies kinds of interfaces, such as E1,STM-1, channelized STM-1, GE/FE, and so on. If there are more than two resource shelves, switch shelf is needed to switch data.
Uses BPSN as Backboard, takes charge of system switch , supplies switch unit for user plane.
Internal Only▲
Control Shelf1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
SBCX
SBCX
SBCX
RCB
RCB
UIMC
UIMC
ROMB
ROMB
CLKG
CLKG
THUB
THUB
Board ID Full Name Configuration Principle Functionality Description Backup
ROMB RNC Operating & Maintenance Board 1 pair per RNC Providing function of OMC agent and
overall system management 1+1
RCB RNC Control plane processing Board
Based on the traffic model, mainly decided by the control plane parameters like BHCA
Dealing with the control plane protocols 1+1
THUB Trunk HUB 1 pair per RNCProvide the signaling switch channel between resource shelf and control shelf.
1+1
CLKG Clock Generator 1 pair per RNCProvide system clock and external
synchronization 1+1
UIMC Universal Interface Module of Control plane 1 pair per control shelf Switch center in the control shelf. 1+1
SBCX X86 Single Board Computer 3 per RNC Provide OMM function and log server 1+1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
RCB
RCB
RCB
RCB
RCB
RCB
RCB
RCB
UIMC
UIMC
RCB
RCB
RCB
RCB
RCB
RCB
Main control shelf boards layout:( Global boards include SBCX, ROMB,
CLKG, THUB are configured in the main control shelf)
Normal control shelf boards layout:
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Resource Shelf - 1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
SDTA2
SDTA2
APBE
APBE
GIPI4
GIPI4
RUB
RUB
GUIM
GUI
M
RUB
RUB
RUB
RUB
RUB
RUB
GIPI4
Board ID Full Name Configuration Principle Functionality Description Backup
RUB RNC User plane processing Board
Depends on user plane traffic model. User plane protocol processing. Load Sharing
GUIM GE Universal Interface Module
1 pair per resource shelf
Used for resource shelf interface shelf internal switching. 1+1
SDTA2Sonet Digital Trunk Board with ATM, 2nd Generation
Provide 4 CSTM-1Provide channelized STM-1 interface and IMA protocol processing ;
Load Sharing or 1+1
APBE ATM Process Board Enhanced
Provide 4 STM-1 interfaces ATM over STM-1 processing. Load Sharing
or 1+1
GIPI4 Gigabit IP Interface, 4rd Generation
Provide 2 * GE or 4 *FE Provide GE/FE interface. Load Sharing
or 1+1
Resource shelf boards layout:
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Internal Only▲
8
Resource Shelf - 2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
SDTA2
SDTA2
SDT
A2
SDTA2
DTA
DTA
DTA
DTA
GUI
M
GUIM
SDTI
SDTI
SDTI
SDTI
SDTI
DTI
DTI
Board ID Full Name Configuration Principle Functionality Description Backup
DTA Digital Trunk Board with ATM
Provide 32 E1 interfaces.
Provide E1 interfaces and MLPPP protocol processing.
Load Sharing or 1+1
DTI Digital Trunk Board with IP Provide 32 E1 interfaces.
Provide E1 interfaces and IMA protocol processing.
Load Sharing or 1+1
SDTI Sonet Digital Trunk Board with IP
Provide 2 CSTM-1 interfaces
Provide channelized STM-1 interface and MLPPP protocol processing
Load Sharing or 1+1
GUIM GE Universal Interface Module
1 pair per resource shelf
Used for resource shelf interface shelf internal switching.
Load Sharing or 1+1
It can provide all kinds
of interface for Iub
interface.
Internal Only▲
Switch Shelf
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
GLI
GLI
GLI
GLI
GLI
GLI
PSN
PSN
GLI
GLI
UI
MC
UIMC
Board ID Full Name Configuration
PrincipleFunctionality Description Backup
PSN Packet Switching Network
1 pair per resource shelf
Provides packet switching among GLIs
1+1
GLI GE Line Interface Every 2 pairs GUIM with 1 pair GLI
process IP packet and manage traffic volume from resource shelves, then converge to PSN.
1+1
UIMCUniversal Interface Module of Control plane
1 pair per resource shelf
Provides signaling switching in switch shelf
1+1
GUIM board connects
to GLI board via 2 GE
interface
Internal Only▲
10
RNC System Architecture
DTA
SBCX
POSI
SDTA2
THUB
RUB
GIPI4
SDTI
RCB
PSN
UIMC
GUIM
APBE
CLKG
ROMB
GLI
GLI
…
Switch Shelf
Control Shelf
Resource Shelf
Signaling FlowData Flow
1960NodeB/5880Cell 76800Erl/9600Mbps All IP hardware platform
UIMCDTI
Other Resource Shelf
Internal Only▲
11
RNC Large Capacity
Traffic Vol. 76,800ErlTraffic Vol. 76,800Erl
BHCA 7,000kBHCA 7,000k
Iub Throughput 9.6GbpsIub Throughput 9.6Gbps
Max. Node B 1,960Max. Node B 1,960
Max. Cell 5,880Max. Cell 5,880
ZTE RNC CapacityZTE RNC Capacity
Iub Throughput : 9.6Gbps 19 inch standard rack One rack includes four layer
shelves, and one shelf includes seventeen slots
ZTE RNC
Internal Only▲
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ZTE Large Capacity IP RNC - less space requirement
IP IP Switch ArchitectureSwitch Architecture
All-All-IP IP NetworkingNetworkingSmooth EvolutionSmooth Evolution
High IntegrityHigh Integrity
High ReliabilityHigh Reliability
Max. Erl Max. BHCA Max. Iub Throughput Max. Cells
ZTE76800
ZTE7000K
Others26000
Others2300K
Others3300Mbps
ZTE9.6Gbps
Others5100
ZTE5880
Most Mature All-IP RNC in the industry: All-IP RNC: IP platform, IP switch, IP interface
Commercial Application for more than 5 years
一级目录标题楷体 GB2312(加粗 )Arial(加粗 )白色24 ~ 28号
ZXWR RNC Introduction
RNC Dimensioning
Summary
Internal Only▲
Processing Unit-1
There are two boards for processing unit: RCB is used for processing
control plane data and RUB is for user plane data.
One processing unit includes two RCB boards and two RUB boards. They
are dimensioned based on following factors:
1). Cell number
2). Node B number
3). Erl for CS traffic and data throughput of PS traffic
One processing unit can provide at most 140 Node B, 420 cell, 4800Erl for CS
traffic or 600 Mbps for PS traffic.
14 14
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Processing Unit-2
There are three main limitation factors for the processing unit dimension. For
the configuration, the maximum level must be chosen from the three factors
below: 1). Unit Level = (Node B Number) / 140 2). Unit Level = (Cell Number) / 420 3). Unit Level = (CS Traffic Erl) / 4800 + (PS Traffic Mbps) / 600 Because of processing level design, the RNC expansion is based on the
processing unit. The RNC expansion process is just as the picture:
15 15
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Processing Unit-3
According to the processing unit, the RNC processing ability can be divided into
14 levels. The processing capacity of the unit and the unit expansion are listed in
the below table:
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Capacity Level
Configuration Processing Ability
RCB RUB Node B Cell CS (Erl) PS Traffic (Mbps)
Level 1 2 2 140 420 4800 600
Level 2 4 4 280 840 9600 1200
Level 3 6 6 420 1260 14400 1800
……… ………… ……………………………………
Level 13 26 26 1820 5460 62400 7800
Level 14 28 28 1960 5880 67200 8400
advance Level 1
30 72000 9000
advance Level 2
32 76800 9600
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Internal Only▲
Processing Unit-4
RCB is not only responsible for the control plane processing, but also for the signaling
link processing. The RNC Signaling Board configuration principle is as below:
When it is under processing level 5, only one pair of RCB is required.
When it is between processing level 6 and level 10, two pairs of RCB are required.
When it is between processing level 11 and level 14, three pairs of RCB are required.
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Transmission UnitInterface Board number
=MAX ( Bandwidth/ throughput per Interface Board ,
port number/ port number per Interface Board ,
node b number/ node b number per Interface Board )
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Transmission Protocol Stack
InterfaceInterface
BoardLimitation Factor
ATM
E1/T1 DTA 32 E1/T1
CSTM-1 SDTA2 4 CSTM-1
STM-1 APBE 4 STM-1 / 310Mbps
IP
E1/T1 DTI 32 E1/T1
CSTM-1 SDTI 2 CSTM-1
STM-1 POSI 4 STM-1 / 310Mbps
GE/FE GIPI4 2 GE / 1500Mbps or 4FE
The limitation factor for transmission interface board is listed in the following table:
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Internal Only▲
Other Boards
There are some other boards to provide the system main control, inner data switch, system
operation and maintenance and so on. The configuration principle for auxiliary board is based on
the below table:
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Board Name Dimension Principle
ROMB 1 pair per RNC.
SBCX 3 per RNC
CLKG 1 pair per RNC.
THUB 1 pair per RNC.
UIMC 1 pair per Control Shelf
GUIM 1 pair per Resource Shelf
GIPI4 1 pair for OMCB
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一级目录标题楷体 GB2312(加粗 )Arial(加粗 )白色24 ~ 28号
Overview
Large Capacity RNC Introduction
Summary
Internal Only▲
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RNC Flexible Capacity Expansion1 rack 2 shelves conf
1 rack full conf2 racks maximum conf
L4
L3
Control shelf
L2
Resource shelf
L1
Cabinet1
Control shelf
Resource shelf
L4
L3
Control shelf
L2
Resource shelf
L1
Cabinet1
Control shelf
Switch shelf
L4
L3
L2
Resource shelf
L1
Cabinet2
Resource shelf
L4
L3
Control shelf
L2
Resource shelf
L1
Cabinet1
Control shelf
300k Users 650k Users 1 million Users
Internal Only▲
Key module1+1 backup , other module N+1 backup
remote online monitor
Real time alarming report
MTBF<1h/20 year
alarming data storage > 3 months
Dual-plane design for Switch plane
Resource pool design for user plane
High Reliability and Backup mechanism
Port level backup
Port 1+1 backup
Port N+1backup
Port load sharing
Board level backup
Board 1+1 backup
Board N+1 backup
Board load sharing
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Internal Only▲
Full IP RAN Solution
According to the transmission resource and cost, select TDM/ATM/IP in the initial phase of network construction for there is less traffic.
With the traffic and new services increase gradually, IP is introduced, and finally evolve to All-IP network.
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IP/MSTPTransmission
RNC01FE
Iub IPIub IP Iur IPIur IP Iu IPIu IP
Iub Hybrid IPIub Hybrid IP
RNC02
PDH/SDH Backbone
Clock over GPS/IP
FE
E1/T1/STM-1
E1/T1/STM-1
E1/T1/STM-1
FE/GE
FE/GE
MGW
SGSN
IP/MSTPBackbone
FE/GE
FE/GE FE/GE
FE/GE
Evolve to IP UTRAN step by stepEvolve to IP UTRAN step by step
Internal Only▲
Abundant interface, flexible transmission
24
Supports ATM, IP transmission, provides diversified interface, providing low cost and smoothly all IP
evolution.
ATM interface
IMA E1,STM-1,CSTM-1; IP interface
E1,POS , FE,GE
ATM over E1 over STM-1
RRNNCC
RRNNCC
n E1
ATM over E1
E1 SDH HUB NodeB
E1E1
E1
Transmission Network155M/622M
ATM over STM-1
155M
E1E1E1
IP over E1
IP over FE/GE
nE1
nE1,ML-PPP or PoS STM-1
TDM
Internal Only▲
26
ZTE Synchronization Implementation
RNC
NodeB
Access Aggregation
Receiver
PSN
Time tree
BITS
PSN
PSN
External Clock: 2M bits & 2M Hz
Sync Ethernet
Use PHY clock from bit stream (similar to SDH/PDH)
Independent from network loadOnly deliver frequency but not phase
Excellent SDH/PDH replacement solution
IEEE 1588V2
Clock is transmitted via dedicated timing packetsCan deliver frequency and phase (FDD/TDD)Works over any transport technology
Deliver frequency and time
Not always viable and not secure
Expensive oscillator required
GPS Receiver
Expensive oscillator required