Abstract: The present invention relates to methods and arrangements for handling unreliable scheduling grants in a WCDMA-communication system. A user equipment detects that a received scheduling grant is unreliable and adjust its serving grant based on that information. The user equipment is also able to report continuously received unreliable grants as an event to the network, allowing the network to adapt its operation to reduce the unreliable grants.

Abstract: The present invention relates to an architectural model of a radio network unit, e.g. a Radio Base Station, that separates functionality in such a way that it is possible to easily adapt the unit to various requirements and conditions. The radio network unit comprises an internal RBS-interface that subdivides the its functionality into a first part, which solely relates to the functionality of the radio network, and a second part, which solely relates to the radio part, i.e. the airborne part of the transmission. The internal interface comprises at least a link that handles the necessary additional communication that arises due to the subdivision and a link that handles the user data that is to be processed, i.e. transmitted or received, by said unit.

Abstract: A telecommunications system and method is disclosed for efficient and flexible usage of bandwidth within a code division multiple access (CDMA) cell. Multiple carriers can be included within a CDMA cell, in which a different number of carriers can be allocated to downlink transmissions and uplink transmissions. In addition, a mobile station (MS) can allocate downlink bandwidth from different carriers to contribute to a Traffic channel, making it possible to form high user bit-rates, e.g., 4 Mbps. A CDMA cell can contain a Primary carrier with all channel types and at least one Secondary carrier with only dedicated channels and optionally power controlled common channels. The Primary carrier has a primary scrambling code and zero or more secondary scrambling codes associated therewith, while the Secondary carrier has one or more secondary scrambling codes associated therewith.

Abstract: A system and method for allocating system resources to provide a selected quality of service in connection with data communications. A mobile user station requests a first quality of service level for a data communication session. In response to a determination that system resources for providing the first quality of service level are unavailable, the system assigns resources for providing a second quality of service level for the data communication session. Thereafter, during the communication session, the system monitors the availability of system resources. If system resources for providing the first quality of service level become available, the system allocates the system resources for use by the user station and upgrades or downgrades the communication session accordingly.

Abstract: A base transceiver station for a mobile communications system is disclosed, which is divided into a plurality of functional units that enables the signal processing resources to be flexibly allocated and cost-effectively implemented in hardware. A flexible communications interface is created between the base transceiver station units which allows the signal processing resources within the units to be used more efficiently. Essentially, the base transceiver station hardware is dimensioned to statistically distribute the signal processing resources among the different radio transmission services available. Consequently, the allocated base transceiver station hardware can be used more efficiently, which minimizes the overall size and weight of the base station.