Title :
Transport architecture evolution in UMTS/IMT-2000 cellular networks
Author_Institution :
3Com Corp, Santa Clara, CA, USA
Abstract :
In this paper we discuss the transport architecture options for the UMTS/IMT-2000, or 3G (3rd Generation), cellular networks. The interfaces between access nodes in a cellular network and the changes incorporated to support packet data services are described. Challenges in selecting one transport technology over another are outlined with reasoning. Requirements to support mobile telephony as well as Internet services in a cellular network are explained. The new ATM standard, ATM Adaptation Layer type 2 (AAL-2) and its applicability for transporting compressed speech in an ATM based cellular network is described. A similar approach in IP, multiplexing in real-time transport protocol (RTP) payload to transport compressed speech on selective interfaces of the 3G network, is introduced. Transport network architecture evolution within four different scenarios is evaluated
Keywords :
asynchronous transfer mode; cellular radio; packet radio networks; radio access networks; telecommunication standards; transport protocols; 3G cellular radio networks; AAL-2; ATM Adaptation Layer type 2; ATM standard; Internet services; RTP; UMTS/IMT-2000 cellular networks; compressed speech; mobile telephony; packet data services; radio access network; real-time transport protocol; transport architecture evolution; 3G mobile communication; Asynchronous transfer mode; Cellular networks; GSM; Intelligent networks; Land mobile radio cellular systems; Radio access networks; Speech; Transport protocols; Wireless networks;
Conference_Titel :
Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-6451-1
DOI :
10.1109/GLOCOM.2000.891763
