SEMINAR RADIO NETWORK CONTROLLER FOR 3G MOBILE AND WIRELESS NETWORK DEVICES BY ARDRA . S7 IT SHMEC KADAKKAL ROLL NO:28

INTRODUCTION RADIO NETWORK CONTROLLER The Radio Network Controller (or RNC) is a governing element in the Universal Mobile Telecommunications System UMTS radio access network (UTRAN). It is responsible for control the Node Bs that are connected to it. Node B is a term used in UMTS to denote the BTS (base transceiver station). Usually the latest cell phones or mobile phones support 3G network allow access to TV, Internet and other on demand services like Navigation and scheduling systems.

This is being developed to support the ever increasing need to mobile phones network users. This also an active area of research which may lead to digital convergence. The functionality of the controller includes controlling and managing the radio transceivers in the Node B equipment, as well as management tasks like soft handoff. The main functions of the RNC are management of radio channels and the terrestrial channels.

Radio Resource Management functionality includes Outer Loop Power Control, Load control, Admission Control, Packet scheduling, Handover control, Macrodiversity combining, Security functions and Mobility Management. The RNC performs tasks in a 3G wireless network analogous to those of the Base Station Controller (BSC) in a 2G or 2.5G network. It interfaces with GPRS Service Nodes (SGSNs) and Gateways (GGSNs) to mediate with the network service providers. The connection from the RNC to a Node B is called the User Plane Interface Layer and it uses T1/E1 transport to the RNC.

LITERATURE REVIEW The RNC is ideal for tactical and first responder systems where the latest communication technologies, streamlined operation and mission-critical security features are essential. Nowadays it is very useful in 3G mobiles.

SEMINAR RADIO NETWORK CONTROLLER FOR 3G MOBILE AND WIRELESS NETWORK DEVICES BY ARDRA . S7 IT SHMEC KADAKKAL ROLL NO:28

ARCHETECTURE

UMTS Wireless Network Infrastructure

Interfaces

RNC Interfaces The logical connections between the network elements are known as interfaces. The interface between the RNC and the Circuit Switched Core Network (CS-CN) is called Iu-CS and between the RNC and the Packet Switched Core Network is called Iu-PS.

LITERATURE REVIEW The RNC is ideal for tactical and first responder systems where the latest communication technologies, streamlined operation and mission-critical security features are essential. Nowadays it is very useful in 3G mobiles.

DATAS UMTS 3G Mobile Wireless Network Architecture Universal Mobile Telecommunications System (UMTS), standardized by the 3GPP, is the 3G mobile communication technology successor to GSM and GPRS. UMTS combines the W-CDMA, TD-CDMA, or TD-SCDMA air interfaces, GSM's Mobile Application Part (MAP) core, and the GSM family of speech codecs. W-CDMA is the most popular cellular mobile telephone variant of UMTS in use. UMTS, using W-CDMA, supports up to 14.0 Mbit/s data transfer rates in theory with High Speed Downlink Packet Access (HSDPA),.

Node B is the physical unit for radio transmission/reception with cells. Node B connects with the UE via the W–CDMA Uu radio interface and with the RNC via the Iub asynchronous transfer mode (ATM)–based interface. Node B is the ATM termination point.

3G (3rd Generation) Typically refers to the current generation of data transmission capabilities over a cellular network for Internet access and real-time video. The major 3G technologies are EV-DO for CDMA networks, such as used by Verizon and Sprint, and HSDPA for GSM networks for carriers such as AT&T and T-Mobile. For example, the iPhone 3G, Apple's second generation iPhone, uses HSDPA. For more details, see cellular generations and iPhone.