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The IUP Journal of Information Technology
Radio Resource Management in Universal Mobile Telecommunication Standard
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Radio resource management is one of the most important entities in the Universal Terrestrial Radio Access Network (UTRAN) which is responsible for maximizing the system capacity so as to maintain the planned coverage area and to deliver the required quality of service. Radio resource management algorithms are mainly divided covering five functions: power control, handoff control, load/congestion control, admission control and packet scheduling. In this paper, different algorithms of radio resource management used in Universal Mobile Telecommunication Standard (UMTS) are analyzed. A critical analysis of the well-known algorithms of radio resource management in UMTS is done.

 
 

One of the most important entities in the Universal Terrestrial Radio Access Network (UTRAN) is Radio Resource Management (RRM). It is responsible for maximizing the system capacity for maintaining the planned coverage area and for delivering the required Quality of Service (QoS). UTRAN is a collective term for the network and equipment that connects mobile handsets to the public telephone network or the Internet. It contains the base stations and Radio Network Controllers (RNCs) which make up the Universal Mobile Telecommunication Standard (UMTS) radio access network. This communication network commonly referred to as 3G (for 3rd Generation Wireless Mobile Communication Technology) can carry many traffic types from real-time circuit switched to IP-based packet switched. The UTRAN allows connectivity between the User Equipment (UE) and the core network. Since in the 3G networks, there is an unpredictable need and the variable requirements of different types of services, pre-allocation of resources and over-dimensioning the network are not feasible. RRM is composed of two parts: radio resource configuration and resource re-configuration.

 
 

Information Technology Journal, Handoff, Soft handoff, CDMA, Fuzzy logic, 3G, Hard handoff, Power control, UMTS