3g Transmisson Planning Part 01a-Rma

1 © 2005 Nokia V1-Filename.ppt / yyyy-mm-dd / Initials

Company Confidential

3G Transmission Planning

Introduction to RAN

Knowledge ReviewDimensioning BTS and InterfacesATM for DimensioningDimensioning Exercises

2 © 2005 Nokia

3G RAN overview and interfacesBTS

BTS

MGW RNC

MSS or MSC

A interface

Gn interface

GGSN

3G-SGSN

Iu-CS

Iu-PS

Iur

RNC

S-AXC

Iub

BTS

BTS

BTS BTS

BTS

BTS

Iub

UNI

UNI

UNI

NNI

NNI

NNI3G-CBC

Iu-BC

3 © 2005 Nokia

Nokia WCDMA Base Station Family

Nokia UltraSite WCDMA BTS

Nokia MetroSiteWCDMA BTS

Optima SupremeIndoor Outdoor Indoor Outdoor

Indoor/outdoor

4 © 2005 Nokia

Nokia UltraSite WCDMA base station• Nokia UltraSite WCDMA base station (BTS) is a solution for high-capacity wide-coverage sites. It

is specially designed to meet the demand for increased data and voice coverage and capacity. Nokia UltraSite WCDMA BTS family consists of the following base stations:

• Nokia UltraSite WCDMA BTS Supreme Indoor • Nokia UltraSite WCDMA BTS Supreme Outdoor • Nokia UltraSite WCDMA BTS Optima Indoor • Nokia UltraSite WCDMA BTS Optima Compact Outdoor

• Triple-mode Nokia UltraSite EDGE BTS Indoor and Triple-mode Nokia UltraSite EDGE BTS Outdoor are also available for use in 3G networks.

• All Nokia UltraSite WCDMA BTSs have a self-standing core structure and consist of plug-in units. As Nokia UltraSite WCDMA BTSs are fully accessible from the front, they can be installed against a wall. All installation, commissioning and maintenance activities can be performed from the front and the top of the cabinet.

• Nokia UltraSite WCDMA BTS cabinets can be configured flexibly and expanded easily. They support various numbers of carriers per sector and the number of sectors can be freely defined with capacity limitations. The cabinets can be chained together to create larger configurations.

• Nokia UltraSite WCDMA BTS and Triple-Mode Nokia UltraSite EDGE BTS contain an integrated transmission interface. It consists of an ATM multiplexer unit and at least one interface adapter.

5 © 2005 Nokia

Nokia AXCBTS integrated AXC

Stand Alone AXC (S-AXC)

6 © 2005 Nokia

Nokia AXC• Nokia AXC is a transport node for third generation (3G) networks. It functions as an ATM

cross-connect device for Radio Access Network (RAN) that complies with 3GPP standards. Nokia AXC supports all relevant international standards, including Japanese.

• Nokia AXC provides a wide range of interfaces for transporting the 3G ATM-based traffic over the existing transmission networks. Nokia AXC interfaces support all different transmission media: wireline, optical fibre, and microwave radio. Because it is possible to use the existing plesiochronous digital hierarchy (PDH) and synchronous digital hierarchy (SDH) transmission infrastructure, investments in a separate ATM network are not required. Consequently, the co-siting of 2G and 3G base stations is a viable option.

• There are two node alternatives for Nokia AXC: base station integrated AXC and standalone AXC. Each Nokia AXC node consists of an ATM Cross-Connect Unit (AXU) and a number of transmission interface units (IFUs). Because of the modular design of Nokia AXC, different types of interfaces can flexibly be configured to meet the current transmission requirements up to the maximum ATM switching capacity of 1.2 Gbit/s. Whenever traffic volumes increase and additional transmission interfaces are required, new AXC transmission interface units can simply be added. They can be inserted either into a WCDMA BTS cabinet or into a subrack located, for example, in a Nokia UltraSite Supreme/Optima site support cabinet.

7 © 2005 Nokia

Nokia RNCRNC has two main tasks to perform: radio resource management and telecommunication management.

Radio resource management• Channel configuration management in co-operation with

radio network planning, including • Code allocation • Admission control • Channel release • Load control • Power control • Handover control

Telecommunication management• User plane processing for core network's circuit switched

and packet switched domains • Location and connection management • Traffic channel allocation in Iub interface • ATM switching and multiplexing • ATM transmission on synchronous digital hierarchy (SDH)

or plesiochronous digital hierarchy (PDH) • Security functions like integrity checking and ciphering • Indication of blockage on the channels between the radio

network controller and mobile services switching centre (MSC)

8 © 2005 Nokia

Nokia 3G-SGSN• The Nokia 3G SGSN is one of the essential elements in the 3rd Generation

mobile communications system and its packet core network. The Nokia 3G SGSN serves the operator's subscribers and controls the usage of the 3G networks. As well as versatile 3G services, it provides Real Time traffic capabilities through comprehensive IP capabilities and gigabit throughput. All of these services and capabilities are optimised for 3G mobile networks.

• The 3G SGSN acts as a link between the 3G Radio Access Network (RAN) and the packet core network, and performs both control and traffic handling functions for the Packet Switched (PS) Domain in the 3G systems. In UMTS, the 3G SGSN is connected to the RAN via the Radio Network Controller (RNC).

• The 3G SGSN control part consists of the Mobility Management functions and the Session Management control functions. Mobility Management deals with the location and state of a Mobile Station (MS), and administers the authentication of the subscriber and the Terminal Equipment (UE).

• The control part of the Session Management deals with connection admission control and any changes in the existing data connections. It also supervises the 3G network services and resources.

• Traffic handling is the executing part of the Session Management. The 3G SGSN acts as a gateway for user data tunnelling. In other words, it relays user traffic between the UE and core network.

9 © 2005 Nokia

Nokia Rel.99 MGW• The IPA2800 Multimedia Gateway Rel.99 is a modern digital switching product

for third generation mobile networks. It belongs to the IPA2800 Product Family based on a platform utilising ATM technology for switching and internal communication.

• The main function of the Multimedia Gateway Rel.99 is to provide UMTS Radio Access Network interworking with the Mobile Switching Centre (MSC). The Multimedia Gateway Rel.99 also provides state-of-the-art Transcoding (TC) services.

• The IPA2800 Multimedia Gateway Rel.99 is easy to operate and maintain. It is a stable and highly reliable product.

• The architecture is highly modular in order to provide flexibility. Smaller configurations can be easily built (e.g. one cabinet) as well as configurations with different mixes of data/speech capacity. The dynamic allocation of call control and user plane processing resources are easily expandable in a cost-efficient manner.

• The main features of the IPA2800 Multimedia Gateway Rel.99 platform are:• distributed processing• modular structure• good on-line operability• fault tolerance• small and compact design with low power consumption• The modularity enables the building of economically dimensioned switching systems

according to the customers' needs and it also reduces the cost of surplus capacity and enables new facilities to be readily added.

10 © 2005 Nokia

Nokia Rel.4 MGW• The 3rd Generation mobile networks will accelerate the shift towards supporting

mass-market IP-based applications that has started with 2nd Generation systems (GSM, US-TDMA). The wireless market is undergoing a period of rapid change in competition, services and underlying technology, making the choice of the network system complex. With Nokia 3G solutions, operators reduce risks by using proven concepts. Mobile networks will continue to evolve, from today to the 3G launch and onwards, to increase the range of available services and service capabilities.

• The Nokia Multimedia Gateway product can be used for transmitting and converting the user plane traffic in both circuit-switched core networks and All-IP Mobility Core Networks as a border element between different kinds of networks.

• The Multimedia Gateway consists of several functional elements configured under the gateway architecture. A number of different configurations of the Multimedia Gateway can be used depending on the services required by the operator.

• The main functions of the Multimedia Gateway are:• to adapt the conventional signalling (control plane) between MSC server or Gateway

Control Server (GCS) and different network interfaces. • to connect the user data (user plane) from ATM/IP backbone into radio access

network or circuit switched networks. Media resources are under control of Connection Processing Server (CPS), GCS or MSC server via H.248 (MEGACO) protocol.

• to provide tones and announcements to end users.• to perform the transcoding and signal processing for the user plane when needed. • Typically, one control network element (CPS, GCS or MSC server) handles several

gateways. Therefore, Nokia Multimedia Gateway provides the possibility to create virtual gateways in one physical gateway element so that it offers media resources to several controlling elements. This multihosting functionality in the gateway gives operators flexibility to utilise the network elements optimally, depending on the network architecture.

11 © 2005 Nokia

Knowledge Review

Name the network elements and interfaces.

12 © 2005 Nokia

Elements & Interfaces1. ____________

4._____________ 3. _____________

5.___________________

17._________________

16._____________

8.___________________

6.________________

13.__________

14.__________

12.__________

2. _____________

11. _____

9. _________

10.___________7.______________

15.___________

Internet