Abstract: An active set of base stations may be controlled based on whether data is unavailable at base stations within the active set. The base station may transmit an indicator indicating whether data is unavailable at the base station and/or a mobile station may monitor a channel characteristic of at least a portion of a channel between the base station and the mobile station.

Abstract: Integrated base stations and a method of transmitting data units in a communications system for mobile devices. In one embodiment, an integrated base station includes a communications processor having a protocol stack configured with a media access control layer and a physical layer.

Abstract: Bidirectional wireless communication is advantageously achieved by using at least two frequency bands, wherein during a first time period a first one of the frequency bands is used for signal transmission (e.g., downlink) while a second one of the frequency bands is used for signal reception (e.g., uplink), and during a second time period (subsequent to the first time period) the first one of the frequency bands is used for signal reception (e.g., uplink) while the second one of the frequency bands is used for signal transmission (e.g., downlink). By alternating the use of the two frequency bands repeatedly between signal transmission and signal reception throughout the communication, overall communication efficiency is improved and latency times considerably reduced, particularly when implemented in a system having multiple antennas (i.e., antenna arrays) and employing coherent beam forming and antenna diversity.

Abstract: The invention relates to a method for controlling vehicle brake pressure as a function of the deviation of the actual slip of wheels relative to a prescribed desired slip. The desired slip is determined from the wheel speeds in such a way that the cornering forces occurring between wheel and roadway given the specific desired slip values and the adhesion conditions occurring, ensure stable handling.