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Hardware Architecture Functions RNC Connectivity Capacity Expansion Operation and Maintenance

CASE STUDY

Agenda

Architecture

The RNC 3820 is based on Connectivity Packet Platform (CPP), the same platform as RNC 3810, RBS and RXI products, as well as other Ericsson products.

Connectivity Packet Platform (CPP) is a platform product for high availability applications to be used when developing ATM and IP based nodes. CPP enable a high degree of redundancy and robustness in order to suit high-availability applications.

RNC Hardware Architecture

Hardware Structure

SUBRACKS The subrack has a backplane with 28 board slots each with 15 mm board width.

The RNC site consists of one cabinet. A cabinet contains one to three subracks, built on a common platform and connected in a star topology.

An RNC has one MS (Main Subrack) located at the bottom of the cabinet. The capacity of the RNC is increased by connecting ESs (Extension Subrack) to the MS.

The largest RNC 3820 configuration as shown in figure consists of:1 APP2 MS3 ES-14 ES-2

Gross view of RNC 3820 front layout

Functions of Main Subrack

• The Main Subrack hosts the GPBs for centralized node processing.• It connects and controls, the Extension Subracks.• The Timing Unit Board is placed in the Main Subrack.• It contains boards for control-plane and user-plane processing and transmission interfaces (GPB, SPB, ETB).• It provides Ethernet termination for local O&M access.• It provides Termination of the Mur interface with OSS-RC.• It provides Termination of the Iu interface with the CN.• It provides Termination of the Iur interface with another RNC.• It provides Termination of the Iub interface with the RBSs.• It is responsible for distribution of broadcast information to all involved subracks.• It is responsible for distribution of broadcast information to all involved RBSs within a subrack.• It is responsible for Pool of processors for user plane processing and control.

Functions of Extension Subrack

Each RNC 3820 contains up to two Extension Subracks.• The Extension Subrack contains boards for control-plane and user-plane processing and transmission interfaces.• The Extension Subrack provides termination points for Iu, Iub, Iur interfaces.• Termination of the Iub interface with the RBSs.• Distribution of broadcast information to all involved RBSs within a subrack.• External transmission interfaces..

3. Functions of RNC Modules:

The RNC modules divide an RNC into smaller resource units. An RNC module comprises the following:• One General Purpose Processor Board (GPB)• A set of dynamically assigned Special purpose Processing Board (SPB) i.e. 2/3 SPBs.

Example of an RNC Module

Example of an RNC 3820 MS

Subrack EquipmentThe MS and ES can each house up to 28 boards. The subracks may contain GPBs, Special Purpose Processor Boards (SBPs), Timing Unit Boards (TUBs), Switch Core Boards (SCBs), Exchange Terminal Boards (ET Boards), CPP Main Switch Boards (CMXBs) and Dummy Boards (DBs).

GPB Central 1 controls Central & O & M functions (redundancy in slot 24)

GPB Central 2 controls RANAP,RANSAP,SCCP,

SCTP and M3UA termination (redundancy in slot 7)

Subrack Boards Description

1. Switch Control Board-Dual Feed (SCB-DF):

The SCB contains hardware modules that provides the following:

• Interfaces for Inter-Subrack Links.• Interfaces for fan supervision and control• Interfaces for GPS information• Power filtering and distribution• Over-temperature protection for subracks• Controls the nearest CMXB, if an SCB-DF goes faulty then the nearest CMXB ceases off within 90 seconds.

Located in slots 1 and 28 in each subrackNumber of units: 2 per subrack (1+1 redundancy).

2. Timing Unit Board (TUB):

The TUB is only found in the MS. It contains hardware modules that provide the following:• Interface for external network clock input (an alternative to the transmission clock)

• Handling of node synchronization proceduresPrimary reference clock sually cesium beam clock

Located in slots 2 and 27 in Main subrack onlyNumber of units: 2 in only Main subrack (1+1 redundancy).

CPP Main Switch Board (CMXB)

CMXB contains hardware modules that provide the following:

• It provides Ethernet switching infrastructure with a 200 Gbps Ethernet switch. • 10G Ethernet ports for external connections• 12 X 10 Gbps Ethernet ports in the back plane• 8 X 10 Gbps Ethernet ports on the front panel used for ESL & external links• High capacity connections between subracks• CMXB is controlled by the adjacent Switch Control Board - Dual Feed (SCB-DF) .

The CMXB board has electrical transmission interfaces. The electrical interfaces are used for all interconnections between CMXB board. External connections to CMXB are connected to the Active Patch Panel (APP). The APP provides conversion to optical interface.

Number of units: 2 per subrack (1+1 redundancy).Located in slots 3 and 26 in each subrack

Exchange Terminal Internal Protocol Gateway BoardET-IPG: Termination IP/Ethernet and IP/ATM conversion. ET-IPG has two connectors at the board front.

ET-IPG contains hardware modules that provide the following:

ET-IPG

• ET-IPG is used to convert between IP and ATM.• Terminates node external circuits• 2 X 1 Gbps Ethernet 1000BaseT ports in front panel. Maximum 1 of them active at a particular time.• 2 X 10 Gbps Ethernet ports toward the back plane. Maximum 1 of them active at a particular time.• ATM to Ethernet gateway

.

ET-IPGs are mandatory in slots 4 and 25Number of units: At least 2 ET-IPG per subrack (redundancy when needed).

IP/Ethernet Transportation Connectivity

ETIPG usage for IP/Ethernet Transportation

General purpose Processing Board (GPB65)

The GPB operates as a Main Processor (MP). It contains and executes the main part of the RNC software. In the 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. The GPB is equipped with Ethernet and asynchronous serial interfaces accessible from the board front panel. The GPB contains a flash disk drive.

• Control plane processing• Operation and Maintenance• Primary Memory increase from 1 to 4 Gbyte• Extra front plane Ethernet Port (can be used for Mur)• RANAP, RNSAP & SCCP are now controlled in Slots MS-7 & 22 instead of MS-8 & 9 (SCCP) and MS-17 & 18 (RANAP/RANSAP) as in RNC3810.• Central and O&M are now in Slots MS-5 & 24 instead of MS-10 & 11 (central) and MS-12 & 13 (O&M) as in RNC3810.

GPB contains hardware modules that provide the following:

Number of units: At least 6 (2 pairs in 1+1 redundancy, all others pooled).

Special purpose Processing Board

The SPB is equipped with a number of Special purpose Processors (SP) and executes parts of the RNC application software. The SP roles depend on the allocated software

Each processor is loaded with one or more of the following applications:• Packet Data Router (PDR), terminates the GTP-U protocol towards the Packet CN.• Common Channel (CC), terminates configured radio channels, for example FACH.• Dedicated Channel (DC), terminates dynamic radio channels, for example DCH.

ET Boards for ATM/SDH Transport

• Exchange Terminal Board . 1.5/2 Mbps (ET-MC1) Terminates node external circuits. 8 X E1. J1 or T1 ports.• Exchange Terminal Board . 155 Mbps (ET-MF4) Terminates node external circuits. 4 x 155 Mbit/s or 4 x 155 Mbit/s optical Unchannalized and MSP 1+1 operation as option• Exchange Terminal Board . 155 Mbps (ET-MF41)o Terminates node external circuits. 4 x 155 Mbit/s) or 4 x 155 Mbit/s) optical Channalized and MSP 1+1 operation as option

Various types of ET Boards used for ATM Transport are -

Dummy Board (DB):

Slot positions not used by other boards are filled with Dummy Boards (DBs) to conform with Electromagnetic Compatibility (EMC) requirements, and to increase the efficiency of the subrack cooling.

GPB and SPB Evolution

HW foruser plane

Relative capacity

Min. SW release

HW availabiltiy

Naming

SPB3 1 P7FP 2009 RNC 3820 R1 (SPB3+GPB65)

SPB4 2 W11B Q3 2011 RNC 3820 R2 (SPB4+GPB75)

HW forcontrol plane

Relative capacity

Min. SW release

HW availability

Naming

GPB65 1 P7FP 2009 RNC 3820 R1 (SPB3+GPB65)

GPB75 1.70 W10B Q1 2011 RNC 3820 R1.1 (SPB3+GPB75)

70% increase of control plane processing capacity and 100% increase of user plane processing capacity during 2011

ATM/SDH Transportation Connectivity

ETMF41 usage for ATM/SDH Transportation

RNC 3820 Backplane

• All Slots can accommodate any ATM capable circuit board • IP/Ethernet backplane are limited to 12 subrack positions. • ET-IPGs may be located in slots 6, 8, 10,12, 15, 17, 19, 21 and 23.• ET-IPG and CMXB are the only boards in that uses the IP/Ethernet part of the

backplane.

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Backplane Capabilities

Active Patch Panel (APP)

The APP is the main physical point of connection for transmission and is located at the bottom of the cabinet.

• The APP converts the electrical 10GE interface of CMXB to various types of 10GE and 1GE optical interfaces by use of different types of SFPs. A 1000BaseT SFP electrical interface is also provided.• The APP is also where O&M connections are made, e.g. a service terminal.

Number of units: 2 per cabinet (1+1 redundancy).

• Connector A on CMXB in slot 3 in the main subrack is connected to APP• Connector A on CMXB in slot 26 in the main subrack is connected to APP• Connectors A and B on GPB65 in slot 5 in the main subrack are connected to APP• Connectors A and B on GPB65 in slot 24 in the main subrack are connected to APP

APP Connectivity with CMXB & GPB65

--------> APP1 (Active)--------> APP2 (Standby)

APP Connectivity with CMXB & GPB65

APP connectivity External Transmission Interfaces

Connection to External Transmission Interface

Internal cabling Of RNC

Connections between the MS and ES is provided by ISL and ESL cables links.

1. Inter Subrack Link (ISL) Cable

When expanding the RNC Cabinet by adding an ES, ISL cables are installed between Switch Core Boards (SCB-DFs) of the MS and the ES.

ISL cable connections between MS and ES-1,2

ISL connections are provided by SCBs in slots 1and 28.

• Throughput for ISL is 320 Mb/s per link• ISL carries control and signalling traffic between the subracks.

Features of ISL cable:

Ethernet Subrack Link (ESL) Cable

When expanding the RNC Cabinet by adding an ES, ESL cables are installed between Component Main Switch Boards (CMXBs) of the MS and the ES to provide the internal communication on node level. The CMXB boards in the same subrack are interconnected for the redundancy.

ESL cable connections between MS and ES-1,2

Features of ESL cable:

ESL connections are provided by CMXBs in slots 3and 26.

• CMXB provides 8 x 10 Gb/s Ethernet ports that can be used for ESL connections to the extension subracks.• User plane between subracks is carried over Ethernet via CMXB ESL connections at 10 Gb/s.

ISL + ESL + Backplane Cable Connections

All Internal Cable Connections

Capacity Expansion

The starting building block of RNC consists of the cabinet, one subrack, Ethernet andATM infrastructure, central processing and one Capacity package (C-Pack).To this can be added Extension Subracks, IP/Ethernet and ATM transmission boards, additional C-Pack, O-Pack-U, O-Pack-C and T-Pack.

Expansion of capacity is made with card sets, C-packs (Capacity Package).In addition to C-packs, increase of control or user plane capacity can be made with optimization packages, O-Packs. Two kinds of O-packs are provided for this purpose: O-pack-C for the control plane and O-pack-U for the user plane.

The Main subrack can accommodate max four C-packs and the Extension subrack, max. six C-packs.

2. Optimization package control plane (O-Pack-C)The O-Pack-C consists of one GBP65 and is to be used when the more Iub control plane capacity is needed. For example, it has been seen that the activity of Smartphone applications causes high channel switching. For customer experiencing this, O-Pack-C can be added. O-Pack-C=1GPB

3. Optimization package user plane (O-Pack-U)The O-Pack-U consists of one SPB3 and is to be used when the more Iubuser plane capacity is needed and provides primarily increased Iub throughput capacity. O-Pack-U=1SPB

1. Capacity Package (C-Pack)The C-Pack consists of one GPB65 for the Iub control plane and two SPB3 for the Iub user plane. This is the normal expansion package used for initialdimensioning. C Pack = 1GPB (CP) + 2 SPB (UP)

Capacity Expansion Packages

C-Pack

4. T-pack (Transmission card package)

The T-pack is typically one ET-IPG transmission interface board or two ET-MF4/ET-MF41 boards for ATM transmission. T-Pack=1ETIPG / 2 ETBoards

RNC Capacity Up gradation

This section describes the procedure for capacity expansion in a subrack. The following steps are included in the procedure:

1) Preparing the Subrack for Expansion- This is done by using RNC HW Configuration Tool from the EM Tools menu.

2) Removing a Board- Remove a dummy board or another board to be replaced. 3) Installing a Board- Installing a GPB/SPB.

4) Updating the RNC software- To complete the expansion of a subrack, the software configuration needs to be updated to support the changed physical configuration.

5) Verifying the installation- Verification of new hardware can be done remotely from an Operation and Maintenance Center (OMC) or through the RNC EM. Ensure that administrative status of new boards is Unlocked.

Create a startable CV on RNC, when expansion is completed.

6) Performing the Concluding Routines- Exit the EM application, disconnect the Client and collect all tools.

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Hardware Configuration

An example of Hardware Configuration of RNC

Hardware Expansion

A one subrack RNC contains a Main Subrack (MS). Whenever a subrack is added to the RNC , the next higher Extension Subrack (ES) is used.

RNC Hardware Expansion

Additional ETBs

Additional ETBs

Additional ETBs

Additional ETBs

Additional ETBs

GPB

SPB

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GPB

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RNC 3820 – variant 10

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R1 Product Packaging (Variant)

GPB

SPB

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SPB

SPB

RNC 3820 – R1 Configuration (160)

TUB *

SCB-DF *

TUB *

SCB-DF *

GPB *

c1MP

GPB *

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C-MXB *

C-MXB *

ET-IPG *

ET-IPG *

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* Mandatory boards; SPB SWA not optimized, will be done according to post launch process

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R1 Capacity Maximum values

Iub throughput [Mbps]: 550 1275 2000 4000Simultaneous users: 40000 84000 127000 180000Number of RBS: 256 640 768 768Number of cells: 768 1920 2112 2304

RNC 3820 variant 110RNC 3820 variant 70RNC 3820 variant 30 RNC 3820 variant 160

First step to support large data volumes

R1.1 Capacity Maximum values

Iub throughput [Mbps]: 700 1600 2500 5000Simultaneous users: 49000 102000 155000 220000Number of RBS: 256 640 768 768Number of cells: 768 1920 2112 2304

RNC 3820 variant 110RNC 3820 variant 70RNC 3820 variant 30 RNC 3820 variant 160

Increased Smartphone capacity with GPB75

R2 Capacity Maximum values

Max Iub throughput: 1100 2550 4000 8000Simultaneous users: 89000 187000 282000

400000Number of RBS: 256 640 768 768Number of cells: 768 1920 2304 2304

RNC 3820 variant 110RNC 3820 variant 70RNC 3820 variant 30 RNC 3820 variant 160

Increased user plane capacity with SPB4

Product Numbers Of Cards

Product Numbers of Cards

Sub Rack Power BudgetThe subrack used in the RNC is dimensioned to handle power feeding and subrack cooling up to 1600 W. For each subrack configuration the total power consumption of installed HW must not exceed the allowed subrack power consumption or the actual site power capacity, whichever is the lowest. When planning a subrack configuration the combination of boards must be adapted to this limit.The power consumption that should be used for each item when calculating power budget for a subrack is shown in Table . The total power for a specific configuration is calculated as the sum of each item installed in the subrack.

HW Item Maximum Power Consumption

GPB65 53 W

SPB3 68 W

ET-MF41 40 W

ET-MF4 25 W

ET-IPG 47 W

SCB-DF 14 W

CMXB 50 W

TUB2 5 W

RNC 3820 Benefits

Reliable:The RNC 3820 is an extremely robust solution with an In Service Performance exceeding 99.999% availability. All hardware is redundant; processors are pooled for high system availability, with no service reduction during hardware failure.

Modular:The RNC 3820 provides a modular hardware architecture where all configurations are createdfrom a few board types, 1-3 sub-racks (shelves) in 1 cabinet. Expansions can be made withoutdisturbing the traffic.

Flexible:The RNC implementation is software centric and built around a few board types. The software centric design and the flexibility to add board types as needed, makes it possible to tailor the RNC 3820 to fit any traffic mix. In today’s world, where consumers always are connected, higher speeds in the networks and new terminals arriving, new trafficpatterns will occur. The RNC 3820 is prepared to meet the future traffic demands and its flexibility makes it ideal to meet the new traffic patterns.

RNC 3820 Benefits cont..

Common platform:The RNC 3820 uses the same platform that is used in many other WCDMA RAN products such as the RNC 3810, the RBS portfolio, and the RXI, as well as in other Ericsson products.

Transport and Transmission:While the RNC 3820 is optimized for high-capacity IP transmission interfaces, it also supports ATM and STM transmission interfaces. The RNC 3820 has integrated Ethernet switching and ATM switching functionality, providing efficient transport solutions for its role in the Radio Access Network.

Operation & Maintenance:Hardware units can be replaced or added and software can be upgraded while in operation.RNC 3820 is fully supported by Ericsson’s OSS-RC solution, with network wide support for Configuration, Fault and Performance management. Element management functionality is embedded in the node, accessible with a standard web browser or from the OSS-RC client.

Case Study

RNC Software Package Upgradation

RNC Software Package Upgradation

PROCEDURE:1.OSS LOGIN

2.LOGIN THROUGH CITRIX3.OPEN SMO

4.SELECT RNC NEED TO UPGRADE5.OPEN AMOS TERMINAL

6.ADJUST SOFTWARE THROUGH SMO TOOL7.START PRE HEALTH CHECK THROUGH SMO TOOL

8.MAKE PRE LOG THROUGH MOSHELL(alt ,strt,,stplugin,pmr at least 2 ROP)8.DEACTIVATE COUNTER

9.START TO UPGRADE THROUGH SMO TOOL10.REACTIVATE COUNTER

11.START POST HEALTH CHECK THROUGH SMO TOOL12.MAKE POST LOG THROUGH MOSHELL(alt ,strt,,stplugin,pmr at least 2 ROP)

13.COMPARE HEALTH CHECK THROUGH SMO TOOL14.CREATE FINAL CV THROUGH SMO TOOL

LOGIN THROUGH C2C

C2C Aircel

SOFTWARE ADJUST

• CHECK SOFTWARE (SW) NEED TO UPGRADE• CXP90147112/R5Y• SELECT RNC EXAMPLE RNC0033• RIGHT CLICK • SELECT SOFTWARE ADJUST• GO TO JOBS AND MONITOR YOUR SW ADJUST COMPLETED OR NOT

PRE HEALTH CHECK

• SELECT RNC EXAMPLE RNC0033• RIGHT CLICK• GO TO HEALTH CHECK check all ex:cell availibilty.disc space,upgrade

package etc.• WAIT FOR 5 MIN.• PRE CHECK FILE APPEARE IN html. FILE COPY html URL in Daily report in precribed format

OPEN AMOS TERMINAL

• MOSHELL COMMANDS• lt all• alt• strt• cvls(cv must not exceeded more than 50 otherwise delete cv)• Pmr –m .5(at least 2 ROP)• Vols(check only disc space )• Make all log file l+ RNC0033_Before _Upgrade• Only alt,strt• l-(close logfile)

SOFTWARE UPGRADE

• SELECT RNC NEED TO UPGRADE• RIGHT CLICK • SELECT UPGRADE FILE CXP9014711/5l• START UPGRADE• IT TAKES 45 MIN APPROXIMATE TO COMPLETE UPGRADE

AFTER UPGRADE

• PROCEDURE• 1.POST CHECK THROUGH SMO TOOL(SAME STEP AS PRE CHECK)• 2 MAKE LOG FILE THROUGH AMOS(SAME STEP AS PRE CHECK)• COMPARE HEALTH CHECK THROUGH SMO TOOL• CREATE CV THROUGH SMO TOOL

AFTER UPGRADE

LOG FILE OF RNC UPGRADE

KO.txt

Summary

Hardware Architecture Functions RNC Connectivity Capacity Expansion Operation and Maintenance

CASE STUDY

“HAPPY LEARNING”

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