02 ZXWR RNC Structure and Principle_PPT-52.ppt

ZXWR RNC Structure and PrincipleZTE University

ContentExternal Interfaces of RNCZXWR RNC Functional Units ZXWR RNC Subracks ZXWR RNC FeaturesZXWR RNC ConfigurationZXWR RNC Cable Connection

UTRAN Structure

CNRNCNodeBNodeB

UE

External Interfaces of RNC

ContentExternal Interfaces of RNCZXWR RNC Functional Units ZXWR RNC Subracks ZXWR RNC FeaturesZXWR RNC ConfigurationZXWR RNC Cable Connection

Which Funcitonal unit will be comprised in RNC system

PWRFAN

SwitchingUnitO&M UnitProcessingUnitPeripheral device monitoring unit

AccessUnitFunctional Units of RNCNodeBRNCCNIuIurIubProvide E1 or STM-1 interfaceprovides a large-capacity and non-blocking IP switching unit for system control management, communication between service processing boards and traffic connection among multiple Access unitsProcess control plane signaling and user plane informationResponsible for general processing and implement O&M controlEnviromnet monitor and alarm

ROMB-RNC O&M processing board

LocationInterface NameDirectionDescriptionRear Board RMPBOMC1BidirectionalThe external Ethernet interface of CPU_A, being left unused.OMC2BidirectionalThe 1100 M Ethernet interface of rear board panel, connecting with external OMM.GPS485BidirectionalThis interface is used to connect with GPS functional module.PD485BidirectionalThis interface connects to the RS485 interface (upper) of the power distribution box.RS232BidirectionalOut-of-band management serial portDEBUG1-232BidirectionalThe debugging serial port of CPU_A, connecting to the debugging machineDEBUG2-232BidirectionalThe debugging serial port of CPU_B, connecting to the debugging machine

*ROMB performs the following functions:Serving as a master processing module and performing the global processing of ZXWR RNC.

2. Serving as a ZXWR RNC O&M agent, managing board statuses, collecting information, and maintaining global static data. In addition, OMCR communicates with the system devices through ROMB.3. RPU that is in charge of the route protocol processing can run on ROMB.ROMB supports the 1+1 hot backup mode.

RCB-RNC control plane processing boardRCB falls into the following two types: When RCB serves as RCP (RNC Control plane Processor), it processes the control plane signaling, No. 7 signaling, and GPS positioning that correspond to Iu, Iub, Iur, and Uu interfaces.

2. When RCB serves as RSP (RNC Signaling Processor), it processes the IP signaling protocol on Iu, Iub and Uu interfaces.

*RCB board is composed of three units:1. CPU unit. The board has two set of CPU units: CPU unit A and CPU unit B. Each CPU unit provides control plane FE electrical interface, active/standby board communication FE electrical interface, and RS232/RS485 interfaces to communicatewith other units. CPU_A is at the bottom of the board and implements the main control function of the board.2. Logical unit, which implements all logical processing functions.3. Power management unit, which implements power management and distribution.RCB supports the 1+1 hot backup mode.

RUB-RNC user plane processing boardRUB falls into the following two types:

RUB (VTCD physical board):

The backplane user plane port supports one FE interface. This type of RUB provides an array consisting of fourteen DSP, performing the user plane protocol processing.

2. RUB (VTCD/2 physical board):

The backplane user plane port supports one FE interface and one GE interface. This type of RUB supports three subcards. Each subcard providesan array consisting of five DSP, performing the user plane protocol processing.

*RUB deals with the radio user plane protocols, including CS service FP/MAC/RLC/IUUP/RTP/RTCP protocol stack and PS service FP/MAC/RLC/PDCP/IUUP, GTP-U protocols.RUB supports non backup mode and load sharing mode.

RUB board is composed of six units:1. Circuit switching unit, which connects the serial ports of multiple-chip DSP with the circuit switching network.2. CPU unit, which manages the board and processes the signals from the Abis interface. It provides the control plane FE interface externally. 162 Confidential and Proprietary Information of ZTE CORPORATION Chapter 6 Front Boards3. DSP unit, which includes multiple DSP chips. It implements the functions of transcoding, rate adaptation or data packetConversions. 4. Ethernet switching unit, which implements the Ethernet connections for multiple-chip DSP and provides the user plane FEinterface externally.5. Clock unit, which provides necessary clock signals for the units on the board.6. Logical unit, which implements all logical processing functions. Description of the data flow of the board:Uplink and downlink data streams is opposite in directions. Take uplink as an example:1. For BIPB, the board receives TDM data from the Abis interface. The circuit switching unit distributes the data to DSP unit for conversions to IP packets, which are sent to other function boards through the Ethernet.2. For DRTB, the interface unit receives audio IP packets from the user plane Ethernet. The packets are distributed to DSP for transcoding and rate adaptation and then transforms to PCM code streams which are switched to the trunk board throughUIMU.3. For TIPB, the user plane data from UIM board is distributed to DSP unit through the Ethernet switching unit for conversion to TDM data and then is sent to other function boards for processing.

THUB-RNC trunk interconnecting boardThe FE ports of RCHB1 and RCHB2 grouped even and odd ports.B1/B1/B2/B2 in one group. B7/B7/B8/B8 in one group.

One group must connect the FE3-FE6 ports of RGUIM1/RGUIM2 in BGSN or FE7-FE10 ports of RUIM2/RUIM3 in control shelf or switch shelf.

The FE port FE45 and FE46 of RCHB are forbidden to use.

B7

B7

B2

B2

B3

B1

B1

B2

B8

B1, B2 ports of RCHB1 and RCHB2 consist one trunk group

B3

B1

B1

B3

B7, B8 ports of RCHB1 and RCHB2 consist one trunk group

B2

B3

B7

B7

B1, B2 ports of RCHB1 and RCHB2 consist one trunk group

RCHB with version 040502

B8

B3

B7 ports of RCHB1 and RCHB2 consist one normal FE group. It is not same with all normal FE ports from RCHB2 in version 040501.

*THUB supports the 1+1 hot backup mode.In ZXWR RNC, THUB implements convergence function at control plane for different resource frames. Each resource cabinet deploys 2 FE ports (control stream) to connect to the Converged Ethernet, and the CHUB is connected to the control shelf and UIMC board through the Gigabit electrical port. THUB can not be used for FE resource shelf. It is not only used between resource shelves, but also can be used for all shelves.The expansion can be performed in FE TRUNK mode. For the expansion of more shelves, connect to 1 G Ethernet exchangethrough GE optical interface.THUB board is composed of the following three units:1. CPU unit, which connects with the unit and the ethernet switching unit through the controlling bus and implements the configuration of the switching chip. It provides RS232 and RS485 serial ports to connect with the external devices for debugging.2. Logical unit, which implements all the logical processing functions.3. Ethernet switching unit, which implements the ethernet switching and control plane convergence functions.

APBE-RNC ATM processing boardAPBE falls into the following two types:

APBE (APBE physical board) APBE (with APBE/2 physical board)APBE provides three optical interfacesAPBE/2 provides four optical interfaces.

*APBE board falls into the following two types:

APBE (APBE physical board) APBE (with APBE/2 physical board)

APBE and APBE/2 are same in the functions;Both supporting 1:1 backup;APBE supporting one pair of APS between boards and two pairs of APS inside one board;APBE/2 supporting four pairs of APS between boards and one pair of APS inside one board ;APBE/2 has higher performance than APBE;APBE provides three optical interfaces and APBE/2 provides four optical interfaces.

APBE supports both no backup mode or 1:1 backup mode.APBE board is composed of the following units:1. Optical interface unit including the optical unit and PHY chip. It implements the STM-1 access function.2. ATM layer processing controlling the cell streams, handover and forwarding.3. Processing unit of the media plane and control plane including AAL2/5 SAR subsystem and CPU daughter card. After SARprocessing, AAL2/5 SAR subsystem falls into two parts: media plane cell whose stream is send out directly by AAL2/5 SARsubsystem, and control plane cell whose stream is processed and sent out by CPU daughter card.The rear board of APBE is RGIM1. When APBE is on Iu interface and is set to extract 8 K base clock from CN, the rear board is RGIM1. Otherwise, insert a blank panel.

ICMG-RNC integrated clock module (GPS)RCKG-RNC clock rear boardThere is identification, such as Port1 and Port2, on one end of each DB9.Port1 and Port2 must be connected to the UIM of the same shelf. Port3 and Port4, as well as Port5 and Port6, are used in pairs.

*ICMG supports the 1+1 hot backup mode.ICMG provides and synchronizes the clock for the system. In addition, ICMG receives the GPS information (receiving GPS signals and generating 8 K clock base) and supports level-2 clock.

Compared with CLKG, ICM has the GPS function. ICM can provide the system with GPS satellite information, for the system positioning. In addition, it provides one more sources for the base clock. Compared with ICMG, the GPS subcard of the ICM is cheaper. ICM is applicable to the system that does not have strict requirements for the positioning information or that only requires the GPS to provide the base clock source.

RCKG1 Provides six channels of clock output ports;Provides two kinds of clock bases (one channel of 8 K input and one channel of BITS reference input);Provides one RS 232 debugging serial port input interface for CLKG/ICMG/ICM.

RCKG2 Provides six channels of clock output ports;Provides two kinds of clock bases (one channel of RITS reference input) ;Provides one RS 232 debugging serial port input interface for CLKG/ICMG/ICM.

GUIM-RNC Gigabit universal interface moduleProviding circuit switching for the resource shelf and the switching HUB, falling into the control plane and the user plane.

Providing the clock drive on the resource shelf.

*GUIM supports the 1+1 hot backup mode.GUIM performs the following functions:Providing 32 K circuit switching for the 1 G resource shelf and the switching HUB, falling into the control plane and the user plane.Providing the clock drive on the resource shelf, inputting 8 K and 16 M signals, distributing the clock to all slots on the resource shelf after locking the phase and driving, and providing 16 M and 8 K clock for the resource boards.GUIM is composed of the following four units:1. CPU unit, which connects with the time-slot switching unit, logical unit and ethernet switching unit. It implements the configuration and management of the switching unit, logical unit and GE resource shelf.2. Logical unit, which implements all the logical processing functions.3. Time-slot switching unit, which has the capability of 16 K circuit switching. It provides an internal circuit switching network for the GE resource shelf.4. Ethernet switching unit, which implements the ethernet switching function of the user plane and control plane in a GE resource shelf.

GIPI/GIPI3/GIPI4-Gigabit Ethernet IP interfaceGIPI supports the load sharingGIPI3/GIPI4 supports the 1+1 backup or the load sharingGIPI RMNIC or RGERGIPI3/GIPI4 RGER or RGER2

*RGER, led out through GE interfaceRGER2, led out through FE interface

The GIPI3 board supports the 1+1 backup or the load-sharingbackup.The rear boards of GIPI3 board are RGER and RGER2. The RGERdoes not output synchronous Ethernet clock. The RGER2 can output8K synchronous Ethernet clock to the clock board.

The GIPI4 board supports the 1+1 backup or the load-sharingbackup.The rear boards of GIPI4 board are RGER and RGER2. The RGERdoes not output synchronous Ethernet clock. The RGER2 can output8K synchronous Ethernet clock to the clock board.

O&M unitresponsible for the clock supply and external synchronizationROMB : RNC Operation & Mentanence BoardCLKG : Clock GeneratorResponsible for global process handling of RNC.Responsible for O&M proxy of whole RNC.Managing states of each board, collecting information about each board, and maintaining global static data of whole RNC.Running RPU module to process routing protocol. SBCX: X86 Single Board Computer Storing the log and performance data

Access unit DTB : Digital Trunk Board IMAB : Inverse Multiplex of ATM BoardSDTB: Sonet Digital Trunk Board DTB is used to provide E1 interface, and it also supports T1 interface by changing configuration. One of the DTB board provides 32*E1.IMAB supports IMA protocol and circuit switch processing.SDTB supports channelized STM-1 interface. One of the SDTB can provide 1*STM-1(63*E1).

*1APBE4STM-1622MAAL2AAL51DTB32E11IMADTB

Access unitAPBE : ATM Process Board Enhanced Providing ATM interface of 4STM-1; Supporting 622M switching capacity and completing AAL2 and AAL5 termination of STM-1 physical interface in RNC; GIPI provides FE, and GE interfaces and accomplishing IP interface function. 1*GE optical or electrical interface or 4*100M FE electrical interfaceGIPI : GE IP Interface

Access Unit

EIPI : E1 IP InterfaceEIPI provides the IP access based on E1 (working with DTB and SDTB). EIPI do not have the external interfaces itself.One EIPI and two DTB work together, providing at most sixty-four E1 interfaces. One EIPI and one SDTB work together, providing one STM-1 interface. APBI : ATM Process Board With IMA

Supporting at most 64 E1 and 31 IMA groups, working with DTB and SDTB to implement the IMA processing of E1 and CSTM-1 interface Providing four STM-1 external interfaces, supporting the traffic of 622 M, and implementing the AAL2 and AAL5 termination of RNC.

Swtiching unit -- level 1 switching unitmaximum 40G switching capacity responsible for user plane data switching and converging.

PSN : Packet Switch NetworkGLI : Gigabit Line Interface Providing 4 GE ports and each GE port works in 1+1 backup mode. GE ports of adjacent GLIs provide GE port backup.Bi-directional user data switching capability, 40 Gbps in each direction

Switching unit -- level 2 switching unitResponsible for control plane signaling switching and converging

UIMC : Universal Interface Module of BCTC UIMU : Universal Interface Module of BUSN Accomplish internal ethernet switching function in the control subrack.Accomplish internal ethernet switching and circuit switching inthe resource subrackGUIM : GE Universal Interface Module It works with the 1 G resource subrack, implementing the function of RNC level-2 switching subsystem user plane switching.CHUB : Control HUB Accomplish the control information converging among subracks.

Processing unitIuIubUu interface control plane protocal processing;Radio resource management;IuIubUu interface user plane data processing;RUB: RNC User plane processing Board RCB : RNC Control plane processing Board

Peripheral devices monitor unitAlarm box will send the different level alarms according to different fault situations of the system in order to be managed and intervened in time by the equipment management personnel.PWRD : Power Distributor ALB : Alarm BoxPower distribution;Monitoring and controlling the environment temperature and humidity, smog, infrared (alarm for illegal intrusion) and fans.

ContentExternal Interfaces of RNCZXWR RNC Functional Units ZXWR RNC Subracks ZXWR RNC FeaturesZXWR RNC ConfigurationZXWR RNC Cable Connection

ZXWR RNC AppearanceZXWR RNCDimension:2000600800mm19 inch standard rackOne rack includes four layer subracks, and one subrack includes seventeen slots

CE

ZXWR RNC Subrack StructureControl subrackResource subrackSwitch subrackUses BCTC as Backboard ,takes charge of processing RNC control plane (RCB&RSB), and also includes ROMP,CLKG,CHUB. CHUB has the function of Switching data.Uses BUSN as Backboard,takes charge of processing RNC user plane (RUB) and includes GIPI, APBE. If there are more than two resource subracks, switch subrack is needed to switch data.Uses BPSN as Backboard,takes charge of level 1switch , supplies switch unit for user plane.Interface subrackUses BUSN as Backboard ,supplies kinds of interfaces, such as E1,STM-1,channelized STM-1,POS and so on.

*BCTC: Backplane of ConTrol Center; BUSN: Backplane of Universal Switch Network

Board functionZXWR RNC Subrack Control SubrackRCB:RNC control board, process the signal of Iux and Uu.UIMC: Universal Interface Module of Control, realize the Ethernet switch among the subracks.ROMB:RNC Operating & Maintenance BoardCLKG: Clock Generator, supply the system clockCHUB: Control HUB, converge the control signal among the resource subracks.

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*ROMBCLKG RCBUIMCGIMUCHUB1+1PSNGLIRUBAPS

RUB:RNC User Board, process the protocol of user plane.GIPI:GE IP Interface ,provide FE, and GE interfaces APBE:ATM process board enhanced version, provide STM-1, STM-4 interfaceSBCX: O&Munit, storing log, storing performance data GUIM: Universal Interface Module of BUSN, realize the Ethernet switch among the subracks

Board functionZXWR RNC Subrack Resource Subrack

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GLI: Gigabit Line Interface, adapt physical layer, process IP packet and manage traffic volumePSN: Packet switch network, manage core switch. UIMC: Universal Interface Module of Control, realize the Ethernet switch among the subracks

Board functionZXWR RNC Subrack Switch Subrack

1234567891011121314151617GLIGLIGLIGLI

PSNPSNUIMCUIMC

APBE : ATM process board enhanced version, provide STM-1, STM-4 interfaceIMAB: supply the IMA functionDTB: realize E1 interface SDTB: realize channelized STM-1 interfaceGIPI: realize GE interfaceGUIM: switch data among the boards in the subrack.EIPI:interface board of RNC. It belongs to the access unit, providing the IP access based on E1 (working with DTB and SDTB).

Board function

ZXWR RNC SubrackInterface Subrack

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ContentExternal Interfaces of RNCZXWR RNC Functional Units ZXWR RNC Subracks ZXWR RNC FeaturesZXWR RNC ConfigurationZXWR RNC Cable Connection

Large Capacity2 Racks for 1 Million Subscribers

Subscribers 1 MillionTraffic Vol. 52,500ErlBHCA 7,000kSwitch Capacity 80GbpsIu Throughput 6,100 MbpsIub Throughput 6,600 MbpsMax. Node B 1,900Max. Cell 5,700ZXWR RNC 2 Racks CapacityZXWR RNCModularity design, ATM/IP gateway function, transmission and bandwidth convergency.RAU can expand independently to provide access interface, easy for future evolution to IP UTRAN.

Iub Throughput6.6GbpsNo.1 in the Industry

ZXWR RNC Product CharacteristicHigh integration, large capacity, full configuration of one million subscribers needs only two racks.All-IP configuration, various interfacesSupport ATM/IP dual protocol stacks, provides ATM UTRAN and IP UTRAN network configuration

Reduce the transport resource by ATM-IP gateway function.Easier evolution to all IP UTRAU by the rich interfaces such as IP over E1, ATM over E1/STM-1, IMA E1/channelized STM-1, POS, FE, GE etc.

ZXWR RNC support IP UTRANZXWR RNC product characteristicZXWR RNC interface shelfZXWR RNC

ZXWR RNC Rich InterfacesZXWR RNC has the interface boards such as APBE,GIPI,IMAB,SDTB&DTB etc.ZXWR RNC supplies the rich interface type including E1,IMA E1,STM-1,CSTM-1,POS,FE,GE to realize the IP UTRAUN configuration.

STM-1POS/100E/1000M ETHER(ETHER/SDH/ATM)

STM1ATM/E1(SDH/ATM)

CSTM1/E1(SDH/LINK)

E1(LINK)

UIM

CHUB

GLI

PSN

APBE

ROMB

ICM

RCB

RUB

GIPI

DTB

RNC Switch Unit

SDTB

Iur/Iu/Iub

Iub

Iur/Iu/Iub

Iur/Iu/Iub

IMAB

RNC Access Unit

RNC O&M Unit

RNC Processing Unit

ZXWR RNC Easy Capacity Expansion

300 thousands subscribers650 thousands subscribersOne million subscribers

The key module 1+1 backup, others N+1 backupRemote online monitorReal time Alerting FunctionMTBF 3 monthSwitch plane adopt double-planeUser Plane adopt resource pool

Design ReliabilityHigh reliability

*All the ZXWR RNC key parts have 1+1 backup like ROMB, RCB, UIMC, UIMU, CHUB, PSN, GLI. RUB and RGUB use load share mechanism.

Control Shelf: All 1+1 BackupResource Shelf: UIMU: 1+1 BackupRGUB,RUB: N+1 BackupSwitch Shelf: UIMC, PSN: 1+1 BackupGLI: N+1 Backup

Easy to O&MEasy to O&M

*

ContentExternal Interfaces of RNCZXWR RNC Functional Units ZXWR RNC Subracks ZXWR RNC FeaturesZXWR RNC ConfigurationZXWR RNC Cable Connection

ZXWR RNC System StructureControl SignalData SignalCHUB, ROMB, CLKG only in main control shelfSBCX only in main resource shelf

Control Shelf Configuration PrincipleCHUB, ROMB and CLKG each config 1 pair for one RNC office (1+1backup) in the main control shelf. Other control shelves only have UIMC and RCB boards.

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NameFull NameConfiguration PrincipleBackup PrincipleROMBRNC Operating & Maintenance BoardEach RNC 1 pair1+1RCBRNC Control plane processing BoardDepends on BHCA of the control plane traffic model1+1CHUBControl plane HUBEach RNC 1 pair1+1CLKGClock GeneratorEach RNC 1 pair1+1UIMCUniversal Interface Module of Control planeEach control shelf 1 pair1+1

Resource Shelf Configuration PrincipleEach RNC office has 2 GIPI (1+1) for OMCB in slot 11/12 of main resource shelf. Each RNC office has only 1 SBCX board in slot 1/2 of main resource shelf.

1234567891011121314151617SBCXAPBEAPBERUBRUBRUBRUBGUIMGUIMGIPIGIPIRUBRUBRUBRUBGIPIRSVBRGIM1RGIM1RGUM1RGUM2RMNICRMNICRGER

NameFull NameConfiguration PrincipleBackup PrincipleRUBRNC User plane processing BoardDepends on user plan traffic modelN+1GIPIGigabit IP InterfaceProvides 1 GE or 4 FE interfacesLoad sharing or 1+1APBEATM Process Board EnhancedProvides 4 ATM STM-1 interfacesLoad sharingSBCXX86 Single Board ComputerEach RNC 1 picno

Interface Shelf Configuration Principle2 GUIM(1+1) for internal switching.Interface boards depend on networking requirements.

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NameFull NameConfiguration PrincipleBackup PrincipleDTBDigital Trunk BoardProvides 32 E1Load sharingSDTBSonet Digital Trunk BoardProvides 1 CSTM-1Load sharing or 1+1APBEATM Process Board EnhancedProvides 4 ATM STM-1Load sharingIMABIMA BoardProcessing 64 IMA E1, 1IMAB+2DTB, 1IMAB+1SDTBLoad sharingEIPIE1 IP InterfaceProcessing 64 IPoE1, 1EIPI+2DTB, 1EIPI+1SDTBLoad sharing

Switch Shelf Configuration PrincipleEach GUIM has 2 GE, and each GLI has 4 GE, so 1 GLI can connect two resource shelf or interface shelf. (1acitve GLI 2 active GUIM1 standby GLI 2 standby GUIM)

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NameFull NameConfiguration PrincipleBackup PrinciplePSNPacket Switching Network1 pair in switch shelf1+1GLIGE Line InterfaceEach pair of GUIM(2 GE) corresponding to 1 GLI (4 GE)1+1UIMCUniversal Interface Module of Control plane1 pair in switch shelf1+1

RNC Configuration Parameter

Primary

Secondary

OptionalTotal UsersTotal amount of TRXsTotal Node BTraffic load per userTraffic load of VT/user.Average data capacity per user in busy hour.Ratio of DL data vol.Iub transmission typeType of ATM IubNumber of ATM IubType of IP IubTrans. type of Iu / Iur

Iub Macro-diversity ratioSystem congestion ratioKey boards redundancyGPS clock supportLanguage of documentEnvironment monitorAlarming systemSDTB backup

Equivalent traffic of data in busy hourAverage throughput of each TRXCommon channel flow per TRXAverage TRX/Node BGPS receiver supportAverage AAL2 PVC per Node BE1 cable type

Primary parameter: Parameter that must be provided by customer and filled.Secondary parameter: Necessary for some project and not necessary for others.Optional parameter: Maybe changed according to customers requirement

ZXWR RNC Minimum ConfigurationApplication ScenarioTelecom exhibition, test project, trial project.Iub support all E1, all FE and hybrid access.No board redundancy.SBCX is configured as log server.Capacity supported by minimum configuration

Max Fixed capacityTypical capacityNode B / CellE1/STM-1UserKVoice Traffic/userErlVideo traffic/user (Erl)Data traffic/ user (bps)BHCA/ user30 / 9030/4400.030.00310004.68

ZXWR RNC Minimum ConfigurationFront PlaneBack Plane

ContentExternal Interfaces of RNCZXWR RNC Functional Units ZXWR RNC Subracks ZXWR RNC FeaturesZXWR RNC ConfigurationZXWR RNC Cable Connection

Cabinet Power Cable InstallationExternal Power CableExternal power cable connects the cabinet-top filter with the external DC distribution cabinet.

Connection

S.N.CableQty.End AEnd A23- 48 V Power Cable2Blue: Filter 48 V inputBlue: Local 48 V power distribution box output24- 48 V Power Cable2Black: Filter 48 VGND inputBlack: Local 48 VGND DC power distribution box output

Cabinet Power Cable InstallationPower Cable for Power Distribution Plug-in BoxTo facilitate the connection of the power cable and the ground-ing cable, each ZXWR RNC rack is designed to bear one 48 V cable in-lead box on the top of the rack.Connection Users neednt install cable of the power distribution box. Its pre-installed before delivery.

Cabinet Power Cable InstallationPower Cable for Fan Shelf/Fan Plug-in BoxThe power cable of cabinet-top fan shelf conducts 48 V that the busbar outputs to the fan monitoring board.

Cabinet Power Cable InstallationPower Cable for Service Plug-in BoxThe service plug-in box leads in -48 V with the 6-core power socket. The cable falls into two parts: External line and internal line. The external line connects from the busbar to the plug-in box filter, while the internal line connects from plug-in box power filter to the backplane.

Cabinet Grounding Cable InstallationGrounding descriptionGrounding cable includes the grounding copper cable of the shelf, the grounding cable of the cabinet door, and the protection ground tandem cable inside the cabinet.

S.N.CableQty.End AEnd A4Grounding copper cable of the shelf4Plug-in box PE portGrounding copper busbar Grounding cable of cabinet door2 Cabinet grounding cable portCabinet doorProtection ground tandem cable inside the cabinet1Cabinet-top protection groundSafety ground of the equipment room

Intra-cabinet Line InstallationApplication ScenarioThe intra-cabinet line falls into the internal cable and internal fiber. Usually, internal lines are ready before delivery.

Cable ClassificationClock CableInterconnection Cable on Control PlaneInterconnection Fiber on User PlanePD485 Cable and Fan Monitoring Cable

Out-of-cabinet Line InstallationApplication ScenarioMonitoring System CableMonitoring system cable include: Fan plug-in box monitoring cable, environment monitoring transfer cable, door control monitoring cable, infrared monitoring cable, temperature/humidity monitoring cable, and smoke monitoring cable. Ethernet CableEthernet cable implements the external Ethernet connection to Node B operation and maintenance center and ZXWR RNC operation and maintenance center. External FiberExternal fiber is used to connect CN and Node B. E1/T1 CableE1/T1 cable is used to implement the external connection from the ZXWR RNC to the CN.

Inter-cabinet Cable InstallationApplication ScenarioInter-cabinet CableInter-cabinet Fiber

ContentsRNC Functions and ServicesRNC Functional Modules and BoardsRNC Signaling and Data FlowRNC Networking Applications

Control Plane Data Switching

User Plane Data Switching

Clock Distribution - Pulse of RNC

Access unit (RAU)Switching unit (RSU)Processing unit (RPU)O & M unit (ROMU)Signaling Flow - User Plane

*

Access unit (RAU)Switching unit (RSU)Processing unit (RPU)O & M unit (ROMU)Signaling Flow - Control Plane

*

ContentsRNC Functions and ServicesRNC Functional Modules and BoardsRNC Signaling and Data FlowRNC Networking Applications

RNC/NM Software OverviewZXWR RNC software consists of ZXWR RNC software, OMM and EMS software.RNC software runs on the boards of ZXWR RNCNM OMM system is in the server/client structure. EMS locates between OMM and NMS.ZXWR RNC (through the SBCX board) connects with OMM through TCP/IP, OMM connects with EMS through TCP/IP.

*The forground ZXWR RNC equipment (through ROMB board) connects with the background OMCR system on a basis of TCP/IP protocol.

Typical NM Networking

OMM NMS and EMS-NetNumen NMS

The NM server of the OMM NMS is installed on the SBCX board. To configure and manage the ZXWR RNC and Node B, the users should connect to the NM server through the NM client on the local ZXWR RNC.

Netnumen NMS can be installed at the local or at the remote. When operating, the user can directly connect to the NetNument NM server through the IP network on the NetNumen client no matter where he is. *

Transmission and Networking Solutions for Iub/Iur InterfaceIf the operator has an ATM network, provide it with ATM STM-1 interfaces for direct access to the RNC.ATM Switch-Based Transmission and Networking Mode

Provide narrowband E1/T1 interfaces for the SDH transmission network, or use channelized STM-1 interfaces for networking.Transmission and Networking Solutions for Iub/Iur InterfaceSDH-Based Transmission and Networking Mode

The RNC can connect and switch with IP backbone network through the interface shelf. If the IP backbone network provides high-rate GE interfaces, direct access to the RNC resource shelf is also acceptable. Choose suitable access mode according to the application.

Transmission and Networking Solutions for Iub/Iur InterfaceIP-Based Transmission and Networking Mode

Depending on different sites, use IP network in some sites and use the traditional SDH transmission in other sites. Depending on different services, use SDH network with the ciruit service and use IP backbone network with packet service.Transmission and Networking Solutions for Iub/Iur InterfaceHybrid Networking and Transmission Mode

Networking Solutions for Iub Interface

In terms of the Iub interface networking topology.ZXWR RNC supports:

Star networking modeChain networking modeRing networking mode (transmission network support required)Hybrid networking mode

Star Networking

In the star networking mode, ZXWR RNC directly connects with each Node B, all of which are terminal equipment.This networking mode is simple and easy to maintenance and construction, with fewer intermediate links along the signal path and higher reliability. Generally, it is used in urban areas with large population.

Chain Networking

In the chain networking mode, signals pass more links, so the ling reliability is poorer.The chain networking mode is suitable for zonal sparsely-populated areas, where it can save much transmission equipment. This mode is also applicable to one site with multiple Node Bs.In actual engineering networking, the chain networking is different from the basic networking in the fact that transmission equipment is generally used between ZXWR RNC and Node B as intermediate connection because the sites are always dispersive. The commonly used transmission media include microwave, optical cable, HDSL and coaxial cable.

Ring NetworkingThe ring networking mode has two links that serve as standby link for each other. Each node in the ring has two upper-level nodes that ensure higher link reliability.If one site is damaged or one link fails, the lower-level nodes can select the other link as the active one.

Hybrid NetworkingHybrid networking mode integrating star and chain networking

Networking Solutions for Iu InterfaceThe Iu interface is the interface between RNC and MSC, SGSN, and MGW, and supports the ATM protocol and the IP protocol. By using the MSTP technology, the Iu interface can form an ATM VP-Ring with convergence and statistical multiplexing functions for high-efficiency service transmission from RNC to MSC and SGSN.

Exercise Please write down the main function units of RNC. and write down the boards of each function units.RNC subrack include ( ) ( ) ( ) and ( ).1 APBE(APBE/2)board can provide ( ) stm-1 interfaces, 1 DTB board provide ( ) E1 interfaces, 1 SDTB board provide ( ) CSTM-1 interface.

Course ReviewWhat is the function for RAU, RSU, RPU, O&M, RPMUDescribe the control plane, user plane and clock signaling distribution in RNC.Describe one typical networking type of RNC system.

*ROMB performs the following functions:Serving as a master processing module and performing the global processing of ZXWR RNC.

2. Serving as a ZXWR RNC O&M agent, managing board statuses, collecting information, and maintaining global static data. In addition, OMCR communicates with the system devices through ROMB.3. RPU that is in charge of the route protocol processing can run on ROMB.ROMB supports the 1+1 hot backup mode.*RCB board is composed of three units:1. CPU unit. The board has two set of CPU units: CPU unit A and CPU unit B. Each CPU unit provides control plane FE electrical interface, active/standby board communication FE electrical interface, and RS232/RS485 interfaces to communicatewith other units. CPU_A is at the bottom of the board and implements the main control function of the board.2. Logical unit, which implements all logical processing functions.3. Power management unit, which implements power management and distribution.RCB supports the 1+1 hot backup mode.*RUB deals with the radio user plane protocols, including CS service FP/MAC/RLC/IUUP/RTP/RTCP protocol stack and PS service FP/MAC/RLC/PDCP/IUUP, GTP-U protocols.RUB supports non backup mode and load sharing mode.

RUB board is composed of six units:1. Circuit switching unit, which connects the serial ports of multiple-chip DSP with the circuit switching network.2. CPU unit, which manages the board and processes the signals from the Abis interface. It provides the control plane FE interface externally. 162 Confidential and Proprietary Information of ZTE CORPORATION Chapter 6 Front Boards3. DSP unit, which includes multiple DSP chips. It implements the functions of transcoding, rate adaptation or data packetConversions. 4. Ethernet switching unit, which implements the Ethernet connections for multiple-chip DSP and provides the user plane FEinterface externally.5. Clock unit, which provides necessary clock signals for the units on the board.6. Logical unit, which implements all logical processing functions. Description of the data flow of the board:Uplink and downlink data streams is opposite in directions. Take uplink as an example:1. For BIPB, the board receives TDM data from the Abis interface. The circuit switching unit distributes the data to DSP unit for conversions to IP packets, which are sent to other function boards through the Ethernet.2. For DRTB, the interface unit receives audio IP packets from the user plane Ethernet. The packets are distributed to DSP for transcoding and rate adaptation and then transforms to PCM code streams which are switched to the trunk board throughUIMU.3. For TIPB, the user plane data from UIM board is distributed to DSP unit through the Ethernet switching unit for conversion to TDM data and then is sent to other function boards for processing.*THUB supports the 1+1 hot backup mode.In ZXWR RNC, THUB implements convergence function at control plane for different resource frames. Each resource cabinet deploys 2 FE ports (control stream) to connect to the Converged Ethernet, and the CHUB is connected to the control shelf and UIMC board through the Gigabit electrical port. THUB can not be used for FE resource shelf. It is not only used between resource shelves, but also can be used for all shelves.The expansion can be performed in FE TRUNK mode. For the expansion of more shelves, connect to 1 G Ethernet exchangethrough GE optical interface.THUB board is composed of the following three units:1. CPU unit, which connects with the unit and the ethernet switching unit through the controlling bus and implements the configuration of the switching chip. It provides RS232 and RS485 serial ports to connect with the external devices for debugging.2. Logical unit, which implements all the logical processing functions.3. Ethernet switching unit, which implements the ethernet switching and control plane convergence functions.*APBE board falls into the following two types:

APBE (APBE physical board) APBE (with APBE/2 physical board)

APBE and APBE/2 are same in the functions;Both supporting 1:1 backup;APBE supporting one pair of APS between boards and two pairs of APS inside one board;APBE/2 supporting four pairs of APS between boards and one pair of APS inside one board ;APBE/2 has higher performance than APBE;APBE provides three optical interfaces and APBE/2 provides four optical interfaces.

APBE supports both no backup mode or 1:1 backup mode.APBE board is composed of the following units:1. Optical interface unit including the optical unit and PHY chip. It implements the STM-1 access function.2. ATM layer processing controlling the cell streams, handover and forwarding.3. Processing unit of the media plane and control plane including AAL2/5 SAR subsystem and CPU daughter card. After SARprocessing, AAL2/5 SAR subsystem falls into two parts: media plane cell whose stream is send out directly by AAL2/5 SARsubsystem, and control plane cell whose stream is processed and sent out by CPU daughter card.The rear board of APBE is RGIM1. When APBE is on Iu interface and is set to extract 8 K base clock from CN, the rear board is RGIM1. Otherwise, insert a blank panel.*ICMG supports the 1+1 hot backup mode.ICMG provides and synchronizes the clock for the system. In addition, ICMG receives the GPS information (receiving GPS signals and generating 8 K clock base) and supports level-2 clock.

Compared with CLKG, ICM has the GPS function. ICM can provide the system with GPS satellite information, for the system positioning. In addition, it provides one more sources for the base clock. Compared with ICMG, the GPS subcard of the ICM is cheaper. ICM is applicable to the system that does not have strict requirements for the positioning information or that only requires the GPS to provide the base clock source.

RCKG1 Provides six channels of clock output ports;Provides two kinds of clock bases (one channel of 8 K input and one channel of BITS reference input);Provides one RS 232 debugging serial port input interface for CLKG/ICMG/ICM.

RCKG2 Provides six channels of clock output ports;Provides two kinds of clock bases (one channel of RITS reference input) ;Provides one RS 232 debugging serial port input interface for CLKG/ICMG/ICM.*GUIM supports the 1+1 hot backup mode.GUIM performs the following functions:Providing 32 K circuit switching for the 1 G resource shelf and the switching HUB, falling into the control plane and the user plane.Providing the clock drive on the resource shelf, inputting 8 K and 16 M signals, distributing the clock to all slots on the resource shelf after locking the phase and driving, and providing 16 M and 8 K clock for the resource boards.GUIM is composed of the following four units:1. CPU unit, which connects with the time-slot switching unit, logical unit and ethernet switching unit. It implements the configuration and management of the switching unit, logical unit and GE resource shelf.2. Logical unit, which implements all the logical processing functions.3. Time-slot switching unit, which has the capability of 16 K circuit switching. It provides an internal circuit switching network for the GE resource shelf.4. Ethernet switching unit, which implements the ethernet switching function of the user plane and control plane in a GE resource shelf.*RGER, led out through GE interfaceRGER2, led out through FE interface

The GIPI3 board supports the 1+1 backup or the load-sharingbackup.The rear boards of GIPI3 board are RGER and RGER2. The RGERdoes not output synchronous Ethernet clock. The RGER2 can output8K synchronous Ethernet clock to the clock board.

The GIPI4 board supports the 1+1 backup or the load-sharingbackup.The rear boards of GIPI4 board are RGER and RGER2. The RGERdoes not output synchronous Ethernet clock. The RGER2 can output8K synchronous Ethernet clock to the clock board.*1APBE4STM-1622MAAL2AAL51DTB32E11IMADTB*BCTC: Backplane of ConTrol Center; BUSN: Backplane of Universal Switch Network*ROMBCLKG RCBUIMCGIMUCHUB1+1PSNGLIRUBAPS*All the ZXWR RNC key parts have 1+1 backup like ROMB, RCB, UIMC, UIMU, CHUB, PSN, GLI. RUB and RGUB use load share mechanism.

Control Shelf: All 1+1 BackupResource Shelf: UIMU: 1+1 BackupRGUB,RUB: N+1 BackupSwitch Shelf: UIMC, PSN: 1+1 BackupGLI: N+1 Backup*

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*The forground ZXWR RNC equipment (through ROMB board) connects with the background OMCR system on a basis of TCP/IP protocol. OMM NMS and EMS-NetNumen NMS

The NM server of the OMM NMS is installed on the SBCX board. To configure and manage the ZXWR RNC and Node B, the users should connect to the NM server through the NM client on the local ZXWR RNC.

Netnumen NMS can be installed at the local or at the remote. When operating, the user can directly connect to the NetNument NM server through the IP network on the NetNumen client no matter where he is. *