Radio resource allocation schemes in 3G and 4G systems

4G system is about to launch. 3G system is already launched. It is the term used to refer to the new scenarios in the wireless arena where different Radio Access Technologies (RATs) will coexist and maneuver in a coordinated way. This cooperation must indeed be regarded as a new challenge to offer services to the users over an efficient and ubiquitous radio access. Of course, the user can be served through the RAT that fits better to service requirements and the terminal capabilities, and also a supplementary proficient use of the radio resources can be achieved. This challenge calls for the introduction of new Radio Resource Management (RRM) algorithms operating from a common perspective that take into account the overall amount of resources offered by the available RATs. In this perspective, this paper presents the scaffold for developing RRM algorithms in the B3G scenarios.